Construction noise and vibration (including site specific plans) by City Rail Link Ltd

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 CONSTRUCTION NOISE AND VIBRATION DELIVERY WORK PLAN Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision: 06

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Construction Noise and Vibration Delivery Work Plan

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-000903

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details

01a

22/09/2015

Draft for Connectus review

Author

Approver

C. Drewery

C. Hind

01b

28/09/2015

2 Draft – AT Review Sent as Rev 01 to AT

C. Drewery

C. Hind

02/10/2015

Draft for Consultation

C. Drewery

C. Hind

02/11/2015

Draft for IPRP – incorporating CLG Comments

C. Drewery

C. Hind

26/02/2016

Draft for AT and Connectus Review – incorporating IPRP comments and updated methodology

C. Drewery

C. Hind

21/03/2016

Final

C.Drewery

C.Hind

3/06/2016

Final incorporating Council review comments

C.Drewery

C.Hind

This document remains the property of Connectus. Its contents are confidential and shall not be reproduced, destroyed or given away without the express, written permission of Connects. The electronic version of this document in MMS Database on designated server(s) is the Master Copy and is a controlled document. Unless specifically noted thereon, other copies of this document are uncontrolled.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Table of Contents Document information .........................................................................................................................3 Revision History ..................................................................................................................................3 Acoustic Glossary ...............................................................................................................................3 1

Introduction........................................................................................................................5 1.1

Purpose of Construction Noise and Vibration DWP

1.2

Designation Condition Requirements

Project Description........................................................................................................... 18 2.1

Summary of Methodology

2.2

Hours of Operation

Roles and Responsibilities ............................................................................................... 24 3.1

CNV DWP Author

Noise and Vibration Criteria ............................................................................................. 25 4.1

Noise Criteria

4.2

Vibration Criteria – Building Damage

4.3

Vibration Criteria – Amenity

Equipment and Noise and Vibration Source Data ............................................................. 27 5.1

Noise Sources

5.2

Vibration Sources

Affected Parties ............................................................................................................... 36 6.1

Noise

6.2

Vibration – Building Damage

General Management Procedures and Mitigation Measures ............................................. 40 7.1

Construction Noise and Vibration Management Schedules

7.2

Training

7.3

Construction Traffic and Deliveries

7.4

Plant and Equipment

7.5

Pneumatic Breakers

7.6

Piling and Compaction

7.7

Noise Barriers and Enclosures

7.8

Traffic tyre noise

7.9

Scheduling of Activities

Site Specific Construction Management Plans ................................................................. 45 8.1

Site Specific Construction Noise Management Plan (SSCNMP)

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Connectus Project #: 2665 Client: Auckland Transport

8.2

Site specific Construction Vibration Management Plan (SSCVMP)

8.3

Site Specific Construction Noise and Vibration Management Plan (SSCNVMP)

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Communicaton ................................................................................................................ 48 9.1

Communication

9.2

Complaints Procedure

Monitoring ....................................................................................................................... 50 10.1 Noise

10.2 Vibration

10.3 Reporting

10.4 Building Condition Surveys

Contingency Measures .................................................................................................... 57 11.1 Management Process

11.2 Noise

11.3 Vibration – Building Damage

11.4 Vibration – Amenity

11.5 Discussion

Appendix A: ISCA Requirements........................................................................................................ A Appendix B: Schedule of Identified At-Risk Receivers, Structures and Services (Vibration)................. B Appendix C: Schedule of Identified At-Risk Receivers (Noise) ............................................................ C Appendix D: Record of Communication / Consultation with notable and Sensitive Receivers .............. D Appendix E: Record of CLG & Independent Peer Review comments .................................................. E CLG Comments

Independent Peer Review – CNV DWP

Independent Peer Review – SSCNVMP

Appendix F: Construction noise and vibration induction ...................................................................... F Appendix G: Noise Monitoring Template ............................................................................................ G Appendix H: Vibration Monitoring Template ........................................................................................ H Appendix I: SIte Specific Construction Noise and Vibration Management Plans ................................... I

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

ACOUSTIC GLOSSARY Term

Definition

A unit of measurement on a logarithmic scale which describes the magnitude of sound pressure with respect to a reference value (20 µPa) ‘

CFA

Continuous Flight Auger

LAeq(T)

The ‘A’-weighted “Time-Average Sound Pressure Level” (also known as the “Equivalent Continuous Sound Pressure Level”). The Time-Average Sound Pressure Level is the constant value of A-Weighted Sound Pressure Level, for a given period (T), that would be equivalent in sound energy to the timevarying A-Weighted Sound Pressure Level measured over the same period [Unit: dB(A)]

LAFmax(T)

The maximum value of A-Weighted Sound Pressure Level measured using an ‘F’ time weighting during the period T. [Unit: dB(A)]

PPV

The peak particle velocity (PPV) is defined as the maximum instantaneous positive or negative peak of the vibration signal. PPV is often used in monitoring of blasting vibration since it is related to the stresses that are experienced by buildings.

NZS 6803:1999

New Zealand Standard NZS 6803:1999 “Acoustics – Construction Noise”.

DIN 4150-3:1999

German Standard DIN 4150-3:1999 “Structural Vibration – Part 3: Effects of vibration on structures”. This standard is generally adopted in NZ to assess building damage.

BS 5228-2:2009

British Standard BS 5228-2:2009 “Code of practice for noise and vibration control on construction and open sites – Part 2: Vibration”. This is the standard adopted for this Project to assess human response to construction.

SSCNMP

Site Specific Construction Noise Management Plan

SSCVMP

Site Specific Construction Vibration Management Plan

SSCNVMP

Site Specific Construction Noise and Vibration Management Plan

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

1 INTRODUCTION The City Rail Link (CRL) project comprises the construction, operation and maintenance of a 3.4 km underground passenger railway, running between Britomart Station and the North Auckland Rail Line in the vicinity of Mt Eden station. The works relating to this Construction Noise and Vibration Delivery Work Plan (CNV DWP) constitute part of the enabling works for the CRL. The works (the Project) involve the construction of twin rail tunnels within the Albert Street road corridor from Customs Street West to Wyndham Street. The tunnels will be constructed using a staged cut and cover method and are expected to take 33 months to complete. Figure 1 outlines the extent of works for the Project. This CNV DWP has been prepared by AECOM New Zealand Limited (AECOM) and forms part of the Construction Environmental Management Plan (CEMP) for the Project. Some aspects of construction noise and vibration management are detailed outside of this CNV DWP. Procedures relating to environmental training, including noise and vibration site management procedures are detailed within Section 4.2 of the Project CEMP. Communications and environmental complaints procedures for the Project are provided in the Project Communication and Consultation Plan. (Appendix O of the Project CEMP).

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Figure 1 Extent of Project Works

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Connectus Project #: 2665 Client: Auckland Transport

1.1

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

PURPOSE OF CONSTRUCTION NOISE AND VIBRATION DWP

The purpose of this CNV DWP is to identify and provide for implementation of the Best Practicable Option (BPO) to avoid, remedy or mitigate adverse noise and vibration effects resulting from construction of the Project. It identifies the noise and vibration performance standards that must, where practicable, be complied with and details the management and control methodologies to be implemented in order to achieve compliance. Where compliance cannot be achieved, the CNV DWP identifies BPO mitigation measures to be implemented on a site specific basis. The CNV DWP is generally consistent with the draft CNVMP dated 25 July 20121 which was provided as part of the Notice of Requirement documentation for CRL. This CNV DWP will be implemented throughout the entire construction period and will be the primary tool for the management of construction noise and vibration effects resulting from the Project. It is a ‘living document’ which may undergo expansion and updates as the Project progresses and working conditions become clearer. Designation Conditions 22 and 23 set out the CNV DWP review and update process that must be followed. This process is summarised as follows: 

This CNV DWP is required to be reviewed annually or as a result of a material change to the Project or to address unforeseen adverse effects arising from construction or unresolved complaints. The review may be initiated by either Auckland Council or the Requiring Authority. Condition 23 requires affected parties to be notified of the review and any material change proposed to this CNV DWP (including SSCNVMPs, SSCNMPs and SSCVMPs).



This CNV DWP must clearly document the comments and inputs received by the Requiring Authority from affected parties about the material change, along with a clear explanation of where any comments have not been incorporated, and the reasons why not.



Any material change proposed to this CNV DWP shall be subject to an independent peer review as required by Condition 11.



Following the independent peer review any material change proposed to this CNV DWP relating to an adverse effect shall be submitted for approval to Auckland Council Compliance and Monitoring Officer, at least 10 working days prior to the proposed changes taking effect. If any changes are not agreed, the relevant provisions of the RMA relating to approval of outline plans shall apply.

It is intended that the noise and vibration schedules in Appendices B and C of this CNV DWP will be updated as necessary with actual noise and vibration levels of the equipment used on site. Providing that the noise and vibration effects at the affected properties are either reduced or maintained at the same level with the mitigation measures identified in this CNV DWP implemented, it is not intended to re-submit the CNV DWP for review/approval. This CNV DWP has been prepared in consultation with a Community Liaison Group (CLG) and has undergone Independent Peer Review prior to submission to Auckland Council (as per designation conditions 7 and 11). A record of consultation outcomes (CLG and IPR) is included in Appendix E.

1.2

DESIGNATION CONDITION REQUIREMENTS

Table 1 identifies the CRL designation conditions that specify what is to be addressed by the CNV DWP, and in turn which sections of the CNV DWP address these conditions.

Designation Condition 36.2 (b) incorrectly references 23 August 2013 as the document date.

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Table 1 CNV DWP conditions and the relevant sections of this document

Condition Number

Relevant Section

Condition Communications – Notable Noise and Vibration Receivers

16.1

16.2

A SSCNVMP shall be prepared for all Notable Noise and Vibration Receivers (refer Condition 39). As part of the SSCNVMP (and further to Condition 15 of this designation), the Requiring Authority shall undertake communication and consultation, as soon as reasonably practicable (and at least once following confirmation of construction timing and methodology), with any Notable Noise and Vibration Receivers located within 200 metres of blasting, or within 100 metres (either horizontally or vertically) of the designation footprint for other construction activities. Communication and consultation with these parties should focus on a collaborative approach to manage the adverse effects from construction noise and vibration while works are undertaken in the vicinity.

9.1

The Requiring Authority shall undertake on-going communication and consultation with notable noise and vibration receivers throughout the duration of construction occurring in the vicinity. This communication shall be reported back to the “key contacts” (see Condition 13) and the Auckland Council Consent Monitoring officer for their review and confirmation of any further action to be undertaken. The Auckland Council Consent Monitoring Officer shall advise the Requiring Authority of its recommendation within 10 working days of receiving this information from the Requiring Authority.

9.1

Project Standards - Construction Noise Construction noise shall comply with the following Project Standards (unless otherwise provided for in a SSCNMP which is approved under Condition 37, 39 or 40): Receiver Type Occupied commercial and industrial buildings (including offices)

Monday to Saturday

Sundays and Public Holidays

At all other times

0700 – 2200

2200 – 0700

75 dB LAeq

65 dB LAeq 1

60 dB LAeq

90 dB LAFmax

80 dB LAFmax2

75 dB LAFmax

31.1 Sensitive Noise and Vibration Receivers (excluding offices)

Early Childhood Education Centres (whilst occupied during normal opening hours)

35 dB LAeq in sleeping areas

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4.1 (Bear Park not impacted by project works)

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Condition Number Bear Park Early Childhood Education Centre at 32 Akiraho Street (whilst occupied during normal opening hours) 31.2

Relevant Section

Condition 35 dB LAeq in sleeping areas 65 dB LAeq in outdoor playing areas

Construction noise shall be measured and assessed in accordance with the provisions of NZS 6803:1999

10.1

Project Standards - Construction Vibration

33.1

Construction vibration (including blasting) shall comply with the following Project Standards for building damage (unless otherwise provided for in a SSCVMP which is approved under Condition 38, 39 or 40) Long-term 1 Short-term (transient) vibration (continuous) vibration PPV at horizontal Type of Structure PPV at the foundation at a frequency of plane of highest PPV at horizontal floor plane of highest 1-10Hz 10-50 Hz 50-100 Hz (mm/s) floor (mm/s) (mm/s) (mm/s) (mm/s) Commercial/ 20 20 – 40 40 – 50 40 10 Industrial Residential/ 5 5 – 15 15 – 20 15 5 School Historic or sensitive structures 3 3–8 8 – 10 8 2.5 Note: 1. Standard DIN 4150-3:1999 defines short-term (transient) vibration as “vibration which does not occur often enough to cause structural fatigue and which does not produce resonance in the structure being evaluated”. Long-term (continuous) vibration is defined as all other vibration types not covered by the short-term vibration definition. 33.1Construction vibration (including blasting) shall be measured in accordance with German Standard DIN 4150-3:1999. Note: Standard DIN 4150-3:1999 defines short-term (transient) vibration as “vibration which does not occur often enough to cause structural fatigue and which does not produce resonance in the structure being evaluated”. Long-term (continuous) vibration is defined as all other vibration types not covered by the short-term vibration definition.

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4.2

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Condition Number 33.2

Relevant Section

Condition Construction vibration (including blasting) shall be measured in accordance with German Standard DIN 4150-3:1999.

10.2

Project Standards - Construction Vibration (Amenity) Between the hours of 10pm and 7am vibration generated by construction activities (excluding blasting) shall not exceed: 34.1

(a) a Peak Particle Velocity (PPV) of 0.3mm/s when measured at any part of the floor of any bedroom;

4.3

(b) a noise level of 35 dB LAeq(15min) when measured in any bedroom.

4.3

Between the hours of 7am and 10pm vibration generated by construction activities (excluding blasting) shall not exceed: (a) A Peak Particle Velocity (PPV) of 1mm/s as measured on the floor of the receiving room for residentially occupied habitable rooms, bedrooms in temporary accommodation and medical facilities; and

4.3

(b) A Peak Particle Velocity (PPV) of 2mm/s as measured on the floor of the receiving room for retail and office spaces (including work areas and meeting rooms);

4.3

34.3

The limits in 34.1 and 34.2 shall only be investigated and applied upon the receipt of a complaint from any building occupant. They shall not be applied where there is no concern from the occupant of the building.

4.3

34.4

Where the limits in 34.1 and 34.2 are found (through measurement) to be exceeded then a SSCVMP shall be prepared for that receiver (Condition 38).

8.2

34.2

Construction Noise and Vibration DWP For the avoidance of doubt, this condition is applicable to the management of construction noise and vibration on all receivers, including sensitive and notable receivers. 36.1

A Construction Noise and Vibration DWP shall be prepared and implemented. The objective of the Construction Noise and Vibration DWP is to provide for the development and implementation of identified best practicable option to avoid, remedy or mitigate the adverse effects on receivers of noise and vibration resulting from construction.

1.1

The Construction Noise and Vibration DWP shall: 36.2

(a) Adopt the noise and vibration standards for construction set out in Conditions 31, 32, 33 and 34 of these designations;

(b) Be generally consistent with the draft Construction Noise and Vibration management plan submitted as part of the Notice of Requirement documentation (dated 23 August 2013); and

1.1

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Condition Number

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Relevant Section

Condition (c) Identify methods to achieve best practicable option for mitigating adverse effects.

To achieve this objective, the Construction Noise and Vibration DWP shall include:

36.3

(a) The roles and responsibilities of the noise and vibration personnel in the contractor team with regard to managing and monitoring adverse noise and vibration effects;

(b) That piling and road cutting will be restricted to between the hours of 7am to 7pm, Monday to Saturday;

2.2

(d) Identification of construction activities that are likely to create adverse noise and vibration effects, the location of these in the construction site areas, and the distance to comply with the Project Criteria in Conditions 31, 32, 33 and 34;

5& Appendix C

(e) The timing of construction activities that are likely to create an adverse noise and vibration effect;

Appendix C

(f) The location of sensitive noise and vibration receivers;

(g) A record of communication and consultation with sensitive noise and vibration receivers. The record must include a clear explanation of where any comments from sensitive receivers have not been incorporated in the Construction Noise and Vibration DWP, and the reasons why not. This information must be included in the Construction Noise and Vibration DWP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11;

Appendix D

(h) Specific measures to address the concerns raised by those sensitive receivers;

Appendix D

(i) Specific training procedures for construction personnel including:

7.2

(i) The project noise and vibration performance standards for construction (conditions 31, 32, 33 and 34);

7.2

(ii) Information about noise and vibration sources within the construction area and the locations of sensitive noise and vibration receivers; and

7.2

(iii) Construction machinery operation instructions relating to mitigating noise and vibration;

7.2

(j) Methods and measures to mitigate adverse noise and vibration effects including, but not limited to, structural mitigation such as barriers and enclosures, the scheduling of high noise and vibration construction, use of low noise and vibration machinery, temporary relocation of affected receivers or any other measures or offer agreed to by the Requiring Authority and the affected receiver;

(k) The proposed methods for monitoring construction noise and vibration to be undertaken by a suitably qualified person for the duration of construction works including:

(i) Updating the predicted noise and vibration contours based on the final design and construction activities;

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Condition Number

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Relevant Section

Condition (ii) Confirm which buildings are to be subject to a pre and post building condition survey in accordance with Condition 46. This includes consideration of those buildings in Appendix One and Two to these conditions;

10.4

(iii) The timing and location for monitoring of buildings during construction is required (Note that the flow charts contained in Appendices B and C of Appendix J of the technical noise and vibration report provided as part of the Notice of Requirement should be used as a guide);

(iv) Identifying appropriate monitoring locations for receivers of construction noise and vibration;

(v) Procedures for working with the Communication and Consultation Manager to respond to complaints received on construction noise and vibration, including methods to monitor and identify noise and vibration sources;

9.2

(vi) Procedures for monitoring construction noise and vibration and reporting to the Auckland Council Consent Monitoring officer; and

(vii) Procedures for how works will be undertaken should they be required as a result of the building condition surveys;

10.4

(l) Cross references to the specific sections in the Communication and Consultation Plan which detail how landowners and occupiers are to be communicated with around noise and vibration effects.

9.1

Site Specific Construction Noise Management Plan (SSCNMP) 37.1

37.2

8.1

Further to the Construction Noise and Vibration DWP in Condition 36, a SSCNMP shall be prepared for any receiver or activity for which air overpressure is either predicted or measured to exceed the limits in Condition 32, or where construction noise is either predicted or measured to exceed the Project Noise Standards in Condition 31, except where the exceedance of the standards in Condition 31 is less than 5 decibels and does not exceed : (a) 0700-2200: 1 period of up to 2 consecutive weeks in any 2 months

8.1

(b) 2200-0700: 1 period of up to 2 consecutive nights in any 10 days

8.1

37.3

For predicted exceedances of less than 5 decibels (refer 37.2) monitoring shall be undertaken to confirm the actual noise levels. If exceedance is shown to be more than 5 decibels, or the period exceeds those detailed, then a SSCNMP will be prepared.

8.1

37.4

In addition to the SSCNMPs prepared in accordance with Condition 37.2, and notwithstanding Condition 37.1, the Requiring Authority shall prepare SSCNMPs specifying the best practicable option for management, methods and measures to mitigate all noise effects for the properties located at: (a) 1 Queen Street (Lot 1 DP 165403);

8.1

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Condition Number

Relevant Section

Condition (b) (c) (d) (e)

21 Queen Street (Lot 1 DP 67723); 29 Customs Street West (Lot 7 DP 77037) 188 Quay Street (Lot 5 DP 63972 and Lot 1 DP 78340); and 23-29 Albert Street (Lot 1 DP 116724).

SSCNMPs will identify:

37.5

37.6

(a) The extent to which noise may exceed the Project Noise Standards in Condition 31 or the overpressure limits in Condition 32;

8.1

(b) The timing and duration of any exceedance;

8.1

(d) The summary of the communication and consultation undertaken with the receiver. The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not. This information must be included in the SSCNMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11;

8.1

(e) The methods and measures to mitigate noise effects, including but not limited to, potential to offer temporary relocation of affected receivers, alternative ventilation, faรงade sound insulation improvements, building condition surveys in the case of overpressure generated by blast events, or other offers made by the Requiring Authority and whether these have been agreed to by the affected receiver;

8.1

(f) The reasons why the management and mitigation measures and methods reflect best practicable option.

8.1

The SSCNMP shall be submitted for the review of Auckland Council as part of the Outline Plan. The works shall then be undertaken in accordance with the SSCNMP confirmed by the Requiring Authority as part of the Outline Plan.

8.1

Site Specific Construction Vibration Management Plan (SSCVMP) 38.1

8.2

38.2

Further to the Construction Noise and Vibration DWP in Condition 36, a SSCVMP shall be prepared: (a) For any unoccupied building, structure or infrastructure for which construction vibration is either predicted or measured to exceed the Project Vibration Standards in Condition 33; (b) Where a complaint or concern is raised and the vibration level exceeds the amenity levels of Condition 34.2(a) and 34.2(b); (c) In response to other concerns or complaints where required (refer Condition 17). (d) For the properties listed in Condition 37.4.

8.2

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Condition Number

Relevant Section

Condition Where the amenity limits in Conditions 34.2(a) and 34.2(b) are exceeded:

38.3

38.4

(a) Best practicable management of vibration must be applied; and

8.2

(b) The vibration activity shall be scheduled to avoid disturbance. If this is not practicable then reasonable respite periods shall be provided to reduce vibration exposure.

8.2

The limits in condition 33 may be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place.

8.2

SSCVMPs will identify:

38.5

(a) The timing and duration of any exceedance;

8.2

(b) Details of the type of activity giving rise to any exceedance;

8.2

(c) Site Specific vibration criteria that addresses the issue(s) of concern (i.e. building damage, amenity and sensitive equipment). Site Specific criteria shall be determined by a suitably qualified independent vibration expert;

8.2

(d) The summary of the communication and consultation undertaken with the receiver. The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not. This information must be included in the SSCVMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11;

8.2

(e) The methods and measures to mitigate vibration effects, including but not limited to, investigating alternative low-vibration construction methods, undertaking high-vibration works outside sensitive times, vibration barriers, building condition surveys, potential to offer temporary relocation of affected receivers, or other offers made by the Requiring Authority and agreed to by the affected receiver.

8.2

(f) The reasons why the management and mitigation measures and methods reflect best practicable option. 38.6

The SSCVMP shall be submitted for the review of Auckland Council. The works shall then be undertaken in accordance with the SSCVMP confirmed by the Requiring Authority as part of the Outline Plan.

8.2

Notable Noise and Vibration Receivers 39.1

Further to Condition 36, the Requiring Authority and its contractor, in conjunction with a suitably qualified expert, shall work collaboratively with each notable receiver during the preparation of a SSCNVMP to confirm the extent and management of adverse effects on each Notable Receiver.

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Condition Number 39.2

39.3

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Relevant Section

Condition In addition to the Construction Noise and Vibration DWP, a SSCNVMP shall be prepared for each identified Notable Receiver. The objective of the SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse noise and vibration effects on each Notable Receiver.

8.1, 8.2

The Requiring Authority shall consult with the notable receiver throughout the duration of construction and update the SSCNVMP as required to achieve the objective in 39.2.

8.1, 8.2

The SSCNVMP shall include:

8.1, 8.2

(a) The level at which noise and vibration effects on the notable receiver will unreasonably interfere with its operation. This will enable development of the site specific criteria. (b) Construction activities and equipment which are likely to create adverse noise and vibration effects and the location and timing of these in relation to the notable receiver; (c) The methods and measures associated with the worksite including, but not limited to, structural mitigation such as barriers and enclosures, use of low noise and vibration machinery and the scheduling of high noise and vibration construction; 39.4

(d) The methods and measures associated with the notable receiver building or operation including, but not limited to, potential for isolation of sensitive areas and equipment, dampening of reradiating surfaces and temporary relocation of affected receivers that are proposed to minimise adverse noise and vibration effects on the notable receiver; (e) Details about the methods to be adopted by the Requiring Authority to minimise construction noise and vibration effects on the notable receiver and the anticipated effectiveness of those methods; (f) A summary of the communication and consultation undertaken with the notable receiver. The summary must include a clear explanation of where any comments have not been incorporated and the reasons why not. (g) Offers made by the Requiring Authority to the notable receiver to mitigate effects and the response by the operators, such as relocation, and whether those offers were accepted or not by the notable receiver; If the parties cannot agree on any of the matters above they shall each appoint a suitably qualified and independent expert, who shall jointly appoint an independent and suitably qualified third expert who shall certify the following matters to be included in the SSCNVMP:

39.5

(a) The level at which noise and vibration effects on the notable receiver unreasonably interfere with its operation (the certified noise and vibration limit); (b) The mitigation methods and measures within the worksite (at source) including, but not limited to, structural mitigation such as barriers and enclosures, use of low noise and vibration machinery and the scheduling of high noise and vibration construction; (c) The mitigation methods and measures at the notable receiver including but not limited to: isolation of sensitive areas and

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Condition Number

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Condition equipment; dampening of reradiating surfaces; any response to such offers; and temporary relocation of affected receivers;

Relevant Section

(d) Whether or not the mitigation methods and measures reflect best practicable management; and (e) Whether or not the residual effects are likely to cause significant disruption to the activities of the notable receiver.

39.6

Following the above process the SSCNVMP shall be submitted for the review of Auckland Council as part of the Outline Plan. For the avoidance of doubt, the Requiring Authority shall not be entitled to make any changes to the SSCNVMP through the Outline Plan process following any agreement reached with the notable receiver and/or through the above certification process without the consent of the notable receiver. The works shall then be undertaken in accordance with the SSCNVMP confirmed by the Requiring Authority as part of the Outline Plan process.

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Sustainability

AT is seeking an Infrastructure Sustainability Council of Australia (ISCA) Infrastructure Sustainability (IS) rating for the CRL enabling works. Full details are included in the Projectâ€™s Sustainability Management Plan. Project sustainability requirements that relate directly to the CNV DWP are included in Appendix A.

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2 PROJECT DESCRIPTION This section presents a summary of the Project in relation to the matters required to be addressed by the CNV DWP. A detailed description of the construction works is provided in the CEMP.

2.1

SUMMARY OF METHODOLOGY

Connectus will use a cut and cover method to construct two parallel rail tunnels within the Albert Street road corridor between Customs Street and Wyndham Street. The total length of the tunnel for the Project will be 340m. A number of utilities are required to be removed, relocated, or supported during construction. Generally, the Project works will consist of: 1.

Utilities relocation and exposure

Piling and capping beam construction within Albert Street (including relocating of any relevant services)

Piling and road deck construction within the Customs Street Intersection

Trench Excavation, including using shotcrete and Rock Dowelling

Construction and waterproofing of the rail tunnels

Backfilling of the trench, including construction of the new road pavement.

2.1.1

Utilities relocation and exposure

The location of utility service cables/pipes/ducts (gas, electricity, phone, wastewater, stormwater) (herein collectively referred to as utilities) within the Project footprint have been identified through site inspections and liaison with Network Utility Operators, including Vector Electricity, Vector Gas, Vector Communications, Chorus, Auckland Council and Vodafone. It is not feasible to completely avoid all utilities, although wherever possible piling locations and other construction activities have been selected to avoid conflict with services. This CNV DWP covers only those utility works within the designation footprint and separate provision has been made for utility works required outside of the designation footprint. Utility relocation works required for Project construction includes works both inside and outside of the trench alignment. All works outside of the trench will be completed prior to excavation works, while the works within the trench will be completed during trench excavation or as the trench is being backfilled on completion of tunnel construction. Further detail on utilities relocation can be found in the CRL Contract 2 CEMP. 2.1.2

Piling and capping beam construction within Albert Street

Piling is required as the initial stage of construction for the Project. It includes the installation of cased continuous flight auger (CFA) piles and the construction of the pilecap on the western side of Albert Street. Figure 2 shows the location and staging of the piling (the sequence will be confirmed closer to construction). The asphalt surface of the road reserve will be removed and the utilities relocated. Piling will then occur, and a Pile-Cap constructed to connect the piles along the western side of Albert Street. Reinforcing will be installed and concrete placed.

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Figure 2 Piling Stages (shown in different colours – the sequence will be confirmed closer to construction)

2.1.2.1

Continuous Traffic Deck

Continuous steel traffic decks will be installed along each side of the main trench along Albert Street during the piling and capping stage of construction. The traffic deck along the western side of the trench will extend between Swanson Street and Customs Street, and will be used by general traffic along Albert Street. The traffic deck along the eastern side of the trench will extend between Wyndham Street and Customs Street and will be limited to use by construction traffic only. The eastern deck (construction traffic deck) will provide continuous access into the excavation along the length of the trench and additional construction site set down and plant space to supplement the southern and northern compounds. In addition to the continuous traffic decks, two pedestrian bridges will span the trench, located on the north side of the Wyndham Street and Swanson Street intersections. 2.1.3

Customs Street intersection piling and road deck construction

Piling and construction of a temporary deck structure at the Customs Street/Albert Street intersection will permit traffic to cross over, while tunnel construction occurs underneath. The deck will be constructed in four stages as shown in Figure 3. This will enable traffic to utilise the intersection during construction and avoids closing the intersection completely. Each stage requires pile installation and jet-grouting followed by excavation to approximately 2m depth to allow the construction of the concrete deck. Once all four piling and deck sections are complete, excavation and tunnel construction can commence beneath the live intersection. In addition to supporting the traffic deck, the piles and jet-grout columns hold back the soil during excavation beneath the deck and stop water from entering the excavation site. After tunnel construction the area under the deck will be backfilled, and the deck structure ‘buried’ (i.e. the deck will no longer be a separate deck structure and will be incorporated in the area immediately below the intersection pavement).

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Figure 3 Staged construction of road deck â€“ sections of the deck will be constructed in 4 stages (sequentially)

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Trench Excavation and spoil handling

Trench excavation will be carried out in layers (starting at the southern end) as shown in Figure 4 with installation of temporary struts and ground anchors as the depth increases. As excavation progresses, steel waler beams and struts will be installed in combination with ground anchors to support the piled trench walls. In addition, shotcrete and/or rockfall mesh with pins will be applied to the sides of the trench to stabilise the excavation face. Shotcrete will be spray applied, rockfall mesh is installed by driving short pins into the soil and attaching the mesh to the pins. As the trench becomes deeper, excavators and loaders will be located inside the trench to break material from the natural face of the trench and transport material to stockpiles. On the construction deck above, cranes and excavators will reach down to remove material from the trench to load onto trucks for offsite disposal.

Figure 4 Excavation â€“ layers

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Waterproofing and tunnel construction

The construction of the rail tunnels will be a rolling process with multiple work faces progressing simultaneously. The tunnel works will start at the southern end of Albert Street when the excavation plant is clear of the base of the tunnel. Tunnel construction will be broken into 12m lengths, and comprises the following tasks: -

Base drainage and blinding Waterproofing Base foundation and construction Wall construction Roof construction Roof waterproofing.

Figure 5 shows a typical cross section for the cut and cover tunnels. Concrete will be pumped to the works by pump machinery that is initially located at the compound on the southern side of Albert Street. The pump machinery is moved onto the construction deck as the works proceed further north. Figure 5 Typical cross section for the Albert Street Cut and Cover Tunnels

2.1.6

Trench backfilling

As the construction of the tunnels progresses, back filling of the cut and cover excavation in the Custom Street Intersection and Albert Street trench will occur. The trench backfill will be placed on top of the tunnel structure after construction has been completed for a sufficient length (approximately 50m), including the installation of the waterproofing membrane, and will continue to follow the tunnel Page 22

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construction as it progresses. A layer of concrete blinding (or similar) will be placed over the roof membrane for protection from the trench backfill works. Material will be delivered to site by trucks on the construction deck. Trucks will deposit the fill material onto the floor of the deck structure and it will be collected and tipped into the trench by a loader. Works to complete new utility routes or reinstate existing utilities will be co-ordinated with the filling operation as it reaches the upper layers. Finally, the construction of the new permanent road pavement will occur in stages after the trench backfill has been completed. 2.1.7

Temporary Pavement

Where required in order to maintain traffic movements, it will be necessary to put down a temporary pavement. Temporary pavements will consist of unbound granular material with a bituminous seal, concrete panels or steel plates on the surface.

2.2

HOURS OF OPERATION

Works will generally be undertaken between 7am and 7pm Monday to Saturday. Designation Condition 36.3(b) requires that piling and road cutting will be restricted to between the hours of 7am to 7pm, Monday to Saturday. Night time works are proposed for installation of the permanent wearing course at the Customs Street intersection (2 nights total).

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3 ROLES AND RESPONSIBILITIES The key personnel responsible for this CNV DWP are identified Table 2. However, all site personnel are responsible for following the requirements of the CNV DWP. Table 2 Key Personnel Role

Person Responsible for CNV DWP Project Director Communication and Consultation Manager Acoustics Specialist Noise and Vibration Monitoring Noise Monitoring Trained Site Personnel Auckland Council â€“ Team Leader Central Monitoring Public complaint contact number Senior Monitoring Inspector

Name

Organisation

Phone

Alasdair Mawdsley

Connectus

021 2404153

Alasdair.mawdsley@mcdgroup. com

Chris Powell

Connectus

021 596 036

Chris.Powell@mcdgroup.com

Allan HowardSmith

Connectus

021 361158

alan.howardsmith@hawkins.co.nz

Claire Drewery

AECOM

021 821 025

Claire.drewery@aecom.com

Nick Henrys

AECOM

021 993 730

Nick.Henrys@aecom.com

Alasdair Mawdsley

Connectus

021 240 4153

Alasdair.Mawdsley@mcdgroup. com

Adam Duncan

Auckland Council

09 353 9041

adam.duncan@aucklandcouncil .govt.nz

Auckland Transport

09 447 4343

CRLProject@aucklandtransport .govt.nz

Fiona Harte

Auckland Council

021828369

Fiona.Harte@aucklandcouncil.g ovt.nz

All personnel working on the Project, including contractor employees and subcontractors, are responsible for following the requirements of this CNV DWP. They must be briefed on this CNV DWP and sign an induction form such as the one provided in Appendix F, and any noise and vibration schedules that relate to the work they will be carrying out.

3.1

CNV DWP AUTHOR

This CNV DWP has been prepared by Claire Drewery, Principal Acoustic Consultant at AECOM and the nominated Acoustics Specialist for the Project. Claire has 14 yearsâ€™ professional experience as an acoustic consultant and she holds a Diploma in Acoustics and Noise Control. Claire is a Member of the Institute of Acoustics.

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4 NOISE AND VIBRATION CRITERIA 4.1

NOISE CRITERIA

Construction noise will be measured and assessed in accordance with New Zealand Standard NZS6803:1999 “Acoustics – Construction Noise”. Construction noise will be managed to comply with the Project Standards (unless otherwise provided for in an approved SSCNMP). The Project Standards for construction noise are detailed in Table 3 and are applicable 1m from any building façade. Section 5.1 of the CNV DWP details equipment and associated noise levels for construction activities. Section 10 of the CNV DWP details how construction activities will be measured/ assessed against the noise criteria. If any construction activity cannot practicably comply with these limits, a SSCNMP will be produced in accordance with Section 8.1 of this CNV DWP. Table 3 Construction Noise Limits Monday to Saturday 0700 – 2200

Sundays and Public Holidays 0700 – 2200

All other times 2200 – 0700

Occupied commercial and industrial buildings (including offices)

75 dB LAeq

Sensitive Noise and Vibration Receivers (excluding offices)

75 dB LAeq

65 dB LAeq

60 dB LAeq

90 dB LAFmax

80 dB LAFmax

75 dB LAFmax

Receiver type

Early Childhood Education Centres (whilst occupied 35 dB LAeq in sleeping areas during normal opening hours) Note: Sensitive receivers (usually building occupants) whose amenity needs to be considered with regards to noise and/or vibration effects; includes but is not limited to dwellings, hotels, educational facilities (including day care facilities), hospitals, places of worship, laboratories, studios, theatres and auditoria.

4.2

VIBRATION CRITERIA – BUILDING DAMAGE

Construction vibration will be measured and assessed in accordance with German Standards DIN 4150-3:1999 “Structural Vibration – Part 3 Effects of Vibration on Structures”. Construction vibration will be managed to comply with the Project Standards for building damage (unless otherwise provided for in an approved SSCVMP). The limits for construction vibration are detailed in Table 4. Section 5.2 of the CNV DWP details equipment and vibration regression curves for construction activities. Section 10 of the CNV DWP details how construction activities will be measured/ assessed against the vibration criteria. If any construction activity cannot practicably comply with these limits, a SSCVMP will be produced in accordance with Section 8.2 of this CNV DWP.

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Table 4 Construction Vibration Limits – Building Damage Long-term (continuous) vibration

Short-term (transient) vibration*

1 – 10 Hz (mm/s)

10 – 50 Hz (mm/s)

50 – 100 Hz (mm/s)

PPV at horizontal plane of highest floor (mm/s)

Commercial / Industrial

20-40

40-50

Residential / School

5 – 15

15 – 20

Type of structure

PPV at the foundation at a frequency of:

PPV at horizontal plane of the highest floor (mm/s)

Historic or sensitive 3 3–8 8 – 10 8 2.5 structures * DIN 4150-3:1999 defines short-term (transient) vibration as “vibration which does not occur enough to cause structural fatigue and which does not produce resonance in the structure being evaluated” Long-term (continuous) vibration is defined as all other vibration types not covered by the short-term vibration definition.

4.3

VIBRATION CRITERIA – AMENITY

4.3.1

Night time criteria

Between the hours of 10pm and 7am vibration generated by construction activities (excluding blasting) shall not exceed: a) a Peak Particle Velocity (PPV) of 0.3mm/s when measured at any part of the floor of any bedroom; b) a noise level of 35 dB LAeq(15min) when measured in any bedroom. 4.3.2

Day time criteria

Between the hours of 7am and 10pm vibration generated by construction activities (excluding blasting) shall not exceed: a) A Peak Particle Velocity (PPV) of 1mm/s as measured on the floor of the receiving room for residentially occupied habitable rooms, bedrooms in temporary accommodation and medical facilities; and b) A Peak Particle Velocity (PPV) of 2mm/s as measured on the floor of the receiving room for retail and office spaces (including work areas and meeting rooms); Designation Condition 34.3 states that the limits identified in Sections 4.3.1 and 4.3.2 of this CNV DWP need only be investigated and applied upon the receipt of a complaint from any building occupant. They shall not be applied where there is no concern from the occupant of the building. When a complaint occurs, and the limits are found (through measurement) to be exceeded then a SSCVMP shall be prepared for that receiver.

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5 EQUIPMENT AND NOISE AND VIBRATION SOURCE DATA 5.1

NOISE SOURCES

Various construction processes and pieces of equipment will act as noise sources on site. Table 5 details predicted noise levels from proposed significant noise sources at various receiver setback distances. The noise data has been taken from British Standard 5228-1:2009 â€œCode of practice for noise and vibration control on construction and open sitesâ€?, manufacturers data or the AECOM database of noise measurements. The noise levels do not account for mitigation. The noise levels detailed in Table 5 are placeholders. All equipment will be measured operating independently and then actual equipment noise levels and model numbers will be recorded and updated within the table. These updates to the information that is detailed in Table 5 will be provided in Appendix C as schedules to the CNV DWP. Providing that the noise effects at the affected properties are either reduced or maintained at the same level with the mitigation measures identified in this CNV DWP implemented, it is not intended to re-submit the CNV DWP for review/approval. This information allows identification of the need for mitigation or management to achieve compliance with the Project noise criteria. Section 7 of this CNV DWP provides details of management procedures and mitigation measures. The work activities described in "work phase" CEP 308-001 Customs Street Intersection Piling and Road Deck Construction are specific to that construction area. The work activities described in the other "work phases" will occur throughout the Albert St and Custom St construction areas.. Table 5 Equipment noise levels

Works Phase

CEP 308-001 Customs Street Intersection Piling and Road Deck Construction

Equipment

Type of works

Sound pressure level dB LAeq 5m

10m

20m

50m

Concrete core drill (type TBC)

Surface removal and service clearing

Vacuum Excavation

Surface removal and service clearing

Soilmec Hydraulic Rotary Rig (est SR80)

Auger drilling and pile casing installation

Concrete Truck

Concrete delivery

Crane

Service crane and pile reinforcement install

Mecbo tracked Concrete Pump

Concrete placement

Excavator (est 15t)

Excavation post piling

SM-20 Hydraulic Micro drilling Rig

Jet Grouting

Hydro-demolition high pressure pump

Removal of concrete encasement on SW main

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Connectus Project #: 2665 Client: Auckland Transport

Works Phase

CEP 309-001 Albert Street Piling and Capping Beam

CEP 311-001 Excavation and Spoil Handling

CEP 316-001 Trench Backfilling

Equipment

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Type of works

Sound pressure level dB LAeq 5m

10m

20m

50m

Bob cat loader

Handling materials

Crane (est. 40t)

Unloading and placing service supports, steel reinforcement and formwork

Concrete saw

Demolition of storm water chamber roof

Angle grinder

Pile breaking

Excavator mounted concrete breaker

Break back over pour on the piles

Concrete vibrators

Concrete placement

Roller compactor

Installation of permanent wearing course

Concrete boom pump

Placement of concrete in deck slab

Concrete core drill (type TBC)

Surface removal and service clearing

Vacuum Excavation (Type TBC)

Surface removal and service clearing

Soilmec Hydraulic Rotary Rig (est SR80)

Auger drilling and pile casing installation

Crane est 40t

Service crane and pile reinforcement install

Mecbo tracked Concrete Pump

Concrete placement

Concrete truck

Concrete delivery

Concrete breaker

Installation of pile cap

Excavator (est 15t)

Excavation post piling

Crawler crane with clamshell bucket 80t

General works, installing temp works, excavation

Road planer / milling machine

Removing the road surface

Excavators 12-20t

Excavation, installing temp works

7684

7078

6472

5664

Front end wheel loader

Spoil handling

6-wheel tipper trucks

Spoil handling, spoil cartage

Long reach excavator

Excavation

Excavators 5-15t

Spreading fill material, removing temp works

7179

6573

5967

5159

Front end wheel

Fill handling

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Works Phase

Equipment

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Type of works

Sound pressure level dB LAeq 5m

10m

20m

50m

loader

CEP 320-001 Waterproofing and Tunnel Construction

CEP 321-001 Shotcrete Installation and Strip Drain Installation

CEP 321-002 Rock Dowel Installation

Bobcat loader

Fill handling

6-wheel tipper trucks

Fill delivery

roller compactors

Compacting fill

plate compactors

Compacting fill in low clearance areas

Concrete pump

Pumping flowable fill to site

Telehandlers

Moving materials

Telescopic Crawler Crane

Moving and placement of materials

Crawler crane (surface) est 50t

Material lowering from delivery bay to workface

Mobile concrete pump

Concrete placement

Static pump and boom

Concrete placement

Rough terrain scissor lift

Working platforms for wall works

Telehandlers

Moving materials

Excavator

Moving materials

Crawler crane (surface) est 50t

Material lowering from delivery bay to workface

Static concrete pump

Concrete feed from truck to workface

Diesel compressor

Shotcrete production

Diesel generator

Power to shotcrete plant

Excavator mounted drill rig

Drilling holes for rockfall pins

Rough terrain knuckle booms

Working platforms for shotcrete install

Telehandlers

Moving materials

Excavator

Moving materials

Angle grinder

Pile breaking

Excavator mounted rock breaker

Pile breaking

Concrete core drill

Drill through pile

Excavator mounted drill rig

Drill rock dowel hole

Crawler crane est. 50t

Material lowering from delivery bay to workface

Water bowser

Drilling and cleaning of drill holes

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Works Phase

CEP 306-001 Ground and Stormwater Management

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Equipment

Type of works

Sound pressure level dB LAeq 5m

10m

20m

50m

Diesel compressor

Drilling and cleaning of drill holes

petrol/diesel generator

power to plant

Grout pump

Grouting rock dowel

Crane

Unloading WTP / establishment works

Forklift

Transporting chemical containers

80 KVA Generator

Power supply

Primary pump

Dewaters trench to WTP at low flow

Secondary pump

Dewater trench to WTP at max treatment flow

High flow pump

Dewater trench direct to SW in an emergency

Water supply pump

Treated water distribution

It should be noted that although mains power will be utilised where practicable, backup generators will be on site for safety reasons and to ensure completion of critical activities in a timely fashion in case of a loss of mains power. Noise from generators has therefore been considered in this CNV DWP. 5.1.1

Cumulative noise sources

During the construction works it is likely that several items of equipment will be operating simultaneously in the same area. Table 6 below gives indicative cumulative noise levels from equipment items that may be operating at the same time, based on the worst-case assumption that all equipment items are located at the same point. Table 7 details distances from the construction activities where the noise limits are predicted to be achieved with no mitigation. Table 6 Indicative cumulative equipment noise levels

Works Phase CEP 308-001 Customs Street Intersection

Construction Activity

Equipment

Service Location and exposure

Concrete saw Vacuum Excavation

Cumulative Sound pressure level, dB LAeq 5m

10m

20m

50m

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Works Phase Piling and Road Deck Construction

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Construction Activity Installation of CFA piles

Jet Grouting

Excavation and support of exposed services Binding and fixing of reinforcement

CEP 309-001 Albert Street Piling and Capping Beam

Placement of concrete Installation of permanent wearing course (night) Stormwater pumping station demolition Stormwater line demolition Service location and exposure Installation of CFA piles

Installation of pile cap CEP 311-001 Excavation and Spoil Handling

Removal of existing road surface st

Excavation 1 layer Excavation 2nd Layer to Bottom

Equipment Soilmec Hydraulic Rotary Rig (est SR80) Excavator (est 15t) Concrete truck Mecbo tracked Concrete Pump Crane (40t) SM-20 Hydraulic Micro drilling Rig Vacuum Excavation Excavator (est 15t) Bob cat Grinder Mecbo tracked Concrete Pump Excavator mounted concrete breaker Crane (40t) Concrete boom pump Concrete vibrators Roller compactor

Concrete core drill (type TBC) Concrete saw Crane (40t) Hydro-demolition high pressure pump Concrete saw Vacuum Excavation Soilmec Hydraulic Rotary Rig (est SR80) Excavator (est 15t) Concrete truck Mecbo tracked Concrete Pump Crane (40t) Excavator (est 15t) Concrete breaker Crane (40t) Road planer / milling machine Excavator 20t 6-wheel tipper trucks (10t) Excavator 20t Small excavator (5t â€“ 14t) 6-wheel tipper trucks (10t) Excavator 14t Front end wheel loader Crawler crane with clamshell bucket (80t) or long reach excavator 6-wheel tipper trucks (10t)

Cumulative Sound pressure level, dB LAeq 5m

10m

20m

50m

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Works Phase CEP 316-001 Trench Backfilling

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Construction Activity Trench backfilling

CEP 320-001 Waterproofing and Tunnel Construction

Waterproofing and tunnel construction (day)

CEP 321-001 Shotcrete and Strip Drain Installation

Rock fall protection netting

CEP 321-002 Rock Dowel Installation

Shotcrete placement

Pre-drilling

Drilling and rock dowel installation

CEP 306-001 Ground and Stormwater Management

Ground and stormwater management

Equipment Excavators 5-15t Front end wheel loader Bobcat loader 6-wheel tipper trucks roller compactors plate compactors Concrete pump Telehandlers Telescopic Crawler Crane Rough terrain scissor lift Mobile concrete pump or Static pump and boom Crane Delivery trucks Excavator mounted drill rig Crane Delivery trucks Diesel compressor Diesel generator Rough terrain knuckle booms or Robotic nozzle manipulator Concrete trucks Static concrete pump Angle grinder Excavator-mounted rock breaker Concrete core drill Telehandlers Excavator-mounted drill rig Water bowser Diesel compressor Petrol/diesel generator Crawler crane est 50t Delivery trucks Crane Forklift 80KVA Generator Primary pump Secondary pump High flow pump WTP Water supply pump

Cumulative Sound pressure level, dB LAeq 5m

10m

20m

50m

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Table 7 Distance from activity where noise limits are predicted to be achieved with no mitigation

Works Phase

CEP 308-001 Customs Street Intersection Piling and Road Deck Construction

Construction Activity

Service Location and exposure Installation of CFA piles Jet Grouting Excavation and support of exposed services Binding and fixing of reinforcement

Installation of permanent wearing course (night) Stormwater pumping station demolition Stormwater line demolition

CEP 311-001 Excavation and Spoil Handling

Service location and exposure Installation of CFA piles Installation of pile cap Removal of existing road surface

CEP 320-001 Waterproofing and Tunnel Construction CEP 321-001 Shotcrete and Strip Drain Installation CEP 321-002 Rock Dowel Installation CEP 306-001 Ground and Stormwater Management

15 40 20 90* 25 20 55 32 32 25

Excavation 1 layer Excavation 2nd Layer to Bottom

CEP 316-001 Trench Backfilling

Placement of concrete

CEP 309-001 Albert Street Piling and Capping Beam

Distance from activity where noise limits will be achieved (m)

20 25

Trench backfilling 40 Waterproofing and tunnel construction 32 Rock fall protection netting 40 Shotcrete placement 25 Pre-drilling Drilling and rock dowel installation

45 47

Ground and stormwater management 20

*night time works

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All construction activities detailed in Table 7 are likely to require mitigation to comply with the noise limits.

5.2

VIBRATION SOURCES

Some construction activities are predicted to generate high levels of vibration including piling, excavation, compaction and breaking. Figure 6 shows the regression curves for the most significant vibration generating activities. Table 8 summarises the setback distance from each of these activities inside of which exceedance of the building damage criteria detailed in Section 4.2 of this CNV DWP may occur at the foundation of receiving buildings. The table will be kept up to date and be representative of the actual equipment on-site and include the results of on-site vibration monitoring. The updates to the information that is detailed in Table 8 will be provided in Appendix B as schedules to the CNV DWP.Providing that the vibration effects at the affected properties are either reduced or maintained at the same level with the mitigation measures identified in this CNV DWP implemented, it is not intended to re-submit the CNV DWP for review/approval. The vibration monitoring procedure is detailed in Section 10 of this CNV DWP. Hand held pneumatic breakers are not included in the regression curves but they typically generate vibration levels of 1mm/s at 10 metres. Vibration monitoring will be carried out on site, in accordance with Section 10.2 of this CNV DWP, once vibration generating activities commence.

Figure 6 Regression curves for significant vibration generating activities

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Table 8 Vibration emission radii for building damage criteria

Works Phase

Type of Works

Vibration Source

Emission radius (m) Historic/Sensitive

Residential

Commercial

CEP 308-001 Customs Street Intersection Piling and Road Deck Construction

Break back over pour on the piles

Excavatormounted rock breaker (900 kg)

Installation of permanent wearing course

Compaction (17t roller)

CEP 309-001 Albert Street Piling and Capping Beam

Auger drilling and pile casing installation

Piling (Auger)

CEP 316-001 Trench Backfilling

Compacting fill

Compaction (17t roller)

CEP 321-002 Rock Dowel Installation

Pile breaking

Excavatormounted rock breaker (900 kg)

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6 AFFECTED PARTIES 6.1

NOISE

Table 9 identifies buildings where construction activities are predicted to exceed the noise limits before mitigation has been applied. Figure 7 shows the location of these noise affected buildings. Table 9 Buildings predicted to receive noise levels exceeding the Project noise limits before mitigation is applied

Address

Building type/ comments

11-27 Customs Street

Commercial

15 Albert Street

Vacant

13 Albert Street

Vacant

9 Albert Street

Mixed Use

5 Albert Street

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

22 Customs Street

Commercial

51 Albert Street

Commercial

41-45 Albert Street

Residential

23-29 Albert Street

Commercial

38 Wyndham Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

61 Albert Street

Mixed Use

57 Albert Street

Commercial

55 Albert Street

Commercial

37-39 Albert Street

Construction Site

35 Albert Street

Construction Site

52-56 Albert Street

Commercial

8 Albert Street

Mixed Use

70-74 Albert Street

Mixed Use

46-50 Albert Street

Commercial

12-26 Swanson Street

Commercial

22-26 Albert Street

Residential

65-71 Albert Street

District Court

34-36 Wyndham Street

Commercial

29 Customs Street

Commercial

33 Wyndham Street

Commercial

76 Albert Street

Residential

26 Wyndham Street

Commercial

6 Wolfe Street

Vacant

9 Wolfe Street

Commercial Page 36

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Address

Building type/ comments

18 Federal Street

Residential

188 Quay Street

Commercial

48-52 Wyndham Street

Commercial

45-53 Queen Street

Commercial

24 Wyndham Street

Commercial

12-26 Swanson Street

Commercial

14 Federal Street

Commercial

10 Federal Street

Mixed Use

20 Wyndham Street

Residential

1 St Patricks Square

Church

Figure 7 Location of the noise affected parties.

Section 7 of this CNV DWP details general mitigation and management measures that will be implemented in respect of these exceedances. Appendix C contains noise schedules for each construction activity and identifies which of the receivers identified in Table 9 are affected by that activity, the noise level at the receiver due to the activity and specific mitigation/ management measures. A Site Specific Construction Noise Management Plan (SSCNMP) will be prepared in accordance with Section 8.1 of this CNV DWP for receivers where noise is predicted to exceed the noise limits (refer Appendix I of this CNV DWP).

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VIBRATION â€“ BUILDING DAMAGE

Some buildings fall within the predicted building damage emission radii identified in Table 8. These buildings may be at risk of exceeding the building damage vibration limits. Table 10 summarises the buildings that may be at risk. Figure 8 shows the location of these vibration affected buildings. The building classification has been determined from the building condition and structural surveys that have been carried out by AECOM. Table 10: Buildings predicted to receive noise levels exceeding the Project noise limits before mitigation is applied

Address

Building Classification

22 Customs Street

Historic / vibration sensitive

5 Albert Street

Historic / vibration sensitive

9 Albert Street

Historic / vibration sensitive

13 Albert Street

Historic / vibration sensitive

3 Albert Street

Commercial

15 Albert Street

Historic / vibration sensitive

17 Albert Street

Historic / vibration sensitive

11-27 Customs Street

Commercial

35 Albert Street

Construction site

23-29 Albert Street

Commercial

37-39 Albert Street

Construction site

41-45 Albert Street

Historic / vibration sensitive

51 Albert Street

Historic / vibration sensitive

55 Albert Street

Historic / vibration sensitive

61 Albert Street

Historic / vibration sensitive

57 Albert Street

Historic / vibration sensitive

38 Wyndham Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

52-56 Albert Street

Historic / vibration sensitive

46-50 Albert Street

Historic / vibration sensitive

12-26 Swanson Street

Commercial

8 Albert Street

Residential

70-74 Albert Street

Residential

22-26 Albert Street

Residential

65-71 Albert Street

Historic / vibration sensitive

34-36 Wyndham Street

Historic / vibration sensitive

Bluestone Wall

Historic / vibration sensitive

Section 7 of this CNV DWP details general mitigation and management measures that will be implemented. Appendix B contains vibration schedules for construction activities and identifies which of the receivers identified in Table 10 are affected by that activity, the noise level at the receiver due to the activity and specific mitigation/ management measures.

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A Site Specific Construction Vibration Management Plan (SSCVMP) will be prepared in accordance with Section 8.2 of this CNV DWP for receivers where vibration is predicted to exceed the building damage vibration limits (refer Appendix I of this CNV DWP). Figure 8 Location of the vibration affected parties

6.2.1

Vibration Effects on Infrastructure Assets

Infrastructure assets, such as underground pipework, that are located near high vibration generating activities will be identified prior to commencing construction and included as the Schedule in Appendix B. Risk assessments of relevant infrastructure assets will be undertaken, and be managed through SSCVMPs (Section 8.2 of this CNV DWP).

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7 GENERAL MANAGEMENT PROCEDURES AND MITIGATION MEASURES The proposed works have the potential to exceed the relevant construction noise and vibration limits at the closest receivers. To avoid/minimise exceedances it is vital that appropriate mitigation and management measures are utilised. Best Practicable Option (BPO) mitigation will be implemented throughout the construction programme to avoid exceedances of the noise and vibration criteria. This will include, but not be limited to the mitigation measures detailed in this section of the CNV DWP. Mitigation of the effects of noise and vibration on affected parties in proximity to the Project is also outlined in sections 4.2 and 5.2 of the Project Social Impact and Business Disruption Delivery Work Plan (Appendix D of the Project CEMP), as a result of consultation with affected parties.

7.1

CONSTRUCTION NOISE AND VIBRATION MANAGEMENT SCHEDULES

Construction noise and vibration management schedules to this CNV DWP have been prepared for the construction activities listed in Table 6 – refer Appendix B for vibration and Appendix C for noise. The schedules identify the potentially affected neighbours, the noise and vibration levels at these neighbours, the proposed methodology and equipment to be used and specific mitigation/ management measures. The schedules will be checked and updated as necessary prior to commencement of each phase of construction works and at regular intervals (monthly as a minimum) throughout the duration of the works.

7.2

TRAINING

Procedures relating to environmental training, including noise and vibration site management procedures are detailed within Section 4.2 of the Project CEMP. As a minimum before commencing work on site all personnel will receive training based on this CNV DWP and relevant to their scope of works. If required, specific training will be provided for site personnel. Training will cover: 

Roles and responsibilities for managing noise and vibration



Familiarisation with noise and vibration limits



Details of noise and vibration sources on-site



Noise and vibration mitigation and management procedures



Location of sensitive receivers



Construction noise and vibration effects on receivers



Details of any operational requirements and constraints identified through communication and consultation



Complaints management procedures

Other administrative and training procedures that will be adopted are: 

Ensure site personnel communicate using the radio/phone rather than shouting.



Include clauses that require compliance with this CNV DWP in subcontractor agreements. Page 40

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

Provide a protocol for handling noise and vibration complaints that includes recording, reporting and acting on complaints. Further detail is provided in the Communication and Consultation Plan (Appendix O of the Project CEMP)



Organise work to be undertaken during the Standard hours where reasonable and practical and safe to do so. Exceptions include works associated with installation of the permanent wearing course at the Customs Street intersection and steel fixing of the tunnel roof, which are proposed to take place during the night time, and works that may require full road closure, such as moving large equipment between work sites.

7.3

CONSTRUCTION TRAFFIC AND DELIVERIES

Noise mitigation and management procedures for construction traffic and deliveries shall include: 

Fit engine exhausts with silencers.



Use broadband reversing alarms.



Avoid slamming doors.



Minimise speed and engine revs.



No stereos operated on site.



Minimise the use of horns.



Turn engines off when stationary for extended periods of time.



Place bedding layer or resilient liner in truck trays.



Use rubber seals around tailgates.



Minimise track squeal from tracked equipment such as excavators by greasing the tracks regularly.

7.4

PLANT AND EQUIPMENT

Designation Condition 21.1 (m) requires that site offices and less noisy construction activities be located at the edge of the construction yards where practicable. Plant and equipment noise and vibration mitigation and management procedures shall include: 

Select plant and equipment based on noise and vibration emission levels.



Turn off plant and equipment or throttle them down to a minimum when not in use.



Select appropriately sized equipment for the task.



Use mufflers and engine covers/screens where appropriate.



Ensure equipment is operated in the correct manner and correctly maintained including replacement of engine covers, repair of defective silencing equipment, tightening of rattling components, repair of leakages in compressed air lines and shutting down of equipment not in use.



Avoid where possible the night-time use of equipment which generates impulsive noise: o

impact piling

dropping materials from a height

metal-to-metal contact on equipment.



Minimise drop height of materials when transferring (e.g. loading and unloading vehicles and storage areas).



Enclose generators with an effective muffler. Page 41

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

Use power from Vector Electricity Network rather than from generators where practicable.



Reduce noise and vibration emissions from plant that has the potential to exceed the criteria by installing silencers, vibration isolation or other appropriate mitigation.



Maximise the distance between the engine exhausts of fixed plant and the nearest sensitive building façade.



Place tools and equipment on the ground – do not drop.



Cover surfaces with resilient material where tools/equipment are placed.



Do not drag equipment on the ground.



Avoid striking bare metal with tools.



Where spoil is being removed into a dump truck, or fill materials are being scooped from a dump truck, position the dump truck to minimise tracking movements.



When using concrete mixers on site do not let aggregates fall from excessive height and do not hammer the drum.



Use broadband reversing alarms on all mobile equipment.

7.5

PNEUMATIC BREAKERS

Noise and vibration mitigation and management procedures for breaking activities shall include: 

Select the right size equipment for the job to minimise the length of time taken to complete the operation.



Use the lowest noise equipment available.



Do not “blank” fire the hammer. The activating valve should only be operated with the hammer in contact with the surface to be broken.



Keep breaker bushes and shaft greased as necessary.



Use correct chisel / tip shape for the type of material being broken.



Where work is contained within a compact area, use acoustic screens which block line of sight between breaker and sensitive receivers.

7.6

PILING AND COMPACTION

Noise and vibration mitigation and management procedures for piling and compaction activities shall include: 

Avoid dynamic compaction using large tamping weights.



Minimise cable slap and chain clink.



Provide mufflers and engine covers/screens where appropriate.



Remove obstructions which may exacerbate vibration transmission where appropriate, prior to piling operations.

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NOISE BARRIERS AND ENCLOSURES

Noise barriers or enclosures will be used in areas where the noise limits are predicted to be exceeded, and where they provide effective mitigation. Noise barriers will generally only be effective for ground floor receivers where noise levels would be reduced by approximately 10 dB. For a noise barrier to be effective it must cut line of sight between the source and receiver. Receivers on the first floor and above will be able to see over the noise barrier and it will provide little attenuation. Noise barriers will be required around all work areas.. The noise barriers should be a minimum of 1.8m high. An effective noise barrier is constructed as follows: 

Positioned to cut line of sight between the construction work and receiver



Positioned as close as practicable to the noisy construction activity



Abutted or overlapped to provide a continuous screen with no gaps at the base or between panels. 2

Noise barriers will generally be constructed from plywood with a minimum surface mass of 10kg/m . However, proprietary products such as Flex Shield are available that have a lower surface mass but provide the same or better levels of noise attenuation. Flex Shield barriers will be utilised during utilities relocation and piling due to the temporary/ mobile nature of these works. Relocatable noise barriers will be erected around all utilities relocation work sites and around all piling sites. Permanent noise barriers will be erected around the southern construction compound as soon as it is set up and around the perimeter of the excavation works, see Figure 9. Figure 9 Location of Noise Barriers

Noise enclosures should be utilised where practicable as they provide better attenuation to receivers above ground floor level. Noise enclosures, with suitable ventilation, are likely to be required for concrete cutting, breaking and compacting. Where enclosures are proposed they shall be designed by the Acoustics Specialist - refer to Table 2 in Section 3 of this CNV DWP.

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TRAFFIC TYRE NOISE

The Project requires public traffic to be routed over temporary traffic decks or through road works at various stages. Vehicle movements may cause temporary decks, steel plates and manholes to rock or move – giving rise to nuisance noises. Sharp changes in the level of the road surface may result in tyre noise. Connectus will use the following methods to reduce these issues so far as reasonably practicable, especially where the noise source will exist for long periods:

7.9



Firmly fix traffic decks to the road or other structural elements to prevent motion.



Place rubber beneath traffic decks and steel road plates where movement occurs.



Provide smooth transitions between changes in road surface level.



Ensure manhole covers are re-fitted correctly.

SCHEDULING OF ACTIVITIES

Scheduling of construction activities can be a key tool for managing construction noise and vibration effects. The time of day and the duration of the construction activities will be adjusted after consultation, where possible, to avoid particularly sensitive times for affected receivers. Consideration will also be given to respite periods and avoidance of activity on certain days (if requested by affected neighbours), where practicable. Night time disturbance to nearby residential receivers will be reduced by carrying out noisy activities during the day. However, the majority of affected properties are commercial, so night works may be preferable in some specific locations.

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8 SITE SPECIFIC CONSTRUCTION MANAGEMENT PLANS 8.1

SITE SPECIFIC CONSTRUCTION NOISE MANAGEMENT PLAN (SSCNMP)

The objective of a SSCNMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from construction noise that does not comply with the Project Noise Standards. A SSCNMP will be prepared for any receiver or activity where construction noise is either predicted or measured to exceed the Project Noise Standards identified in Section 4 of this CNV DWP, except where the exceedance is less than 5 decibels and does not exceed: a. 0700-2200: 1 period of up to 2 consecutive weeks in any 2 months b. 2200-0700: 1 period of up to 2 consecutive nights in any 10 days For predicted exceedances of less than 5 decibels monitoring shall be undertaken to confirm the actual noise levels. If exceedance is shown to be more than 5 decibels, or the period exceeds those detailed, then a SSCNMP must be prepared (refer designation Condition 37.3). The SSCNMP will identify: a) The extent to which noise may exceed the Project Noise Standards in designation Condition 31; b) The timing and duration of any exceedance; c) Details of the type of activity causing any exceedance; d) The summary of the communication and consultation undertaken with the receiver. The summary must include a clear explanation of where any comments have not been incorporated and the reasons why not. This information must be included in the SSCNMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11; e) The methods and measures to mitigate noise effects, including but not limited to, potential to offer temporary relocation of affected receivers, alternative ventilation, faรงade sound insulation improvements, building condition surveys in the case of overpressure generated by blast events, or other offers made by the Requiring Authority and whether these have been agreed to by the affected receiver; f)

The reasons why the management and mitigation measures and methods reflect best practicable option.

The SSCNMP will be submitted for review to Auckland Council prior to commencing the works included in the SSCNMP as part of the Outline Plan. The works shall then be undertaken in accordance with the SSCNMP confirmed by the Requiring Authority as part of the Outline Plan. A SSCNMP will be prepared for the only notable receiver (Auckland District Court) affected by the works covered in this CNV DWP and for 23-29 Albert Street in accordance with Condition 37.4. In addition, SSCNMPs will be prepared for Stamford Plaza and Stamford Residences in accordance with the agreements they have in place with Auckland Transport.

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SITE SPECIFIC CONSTRUCTION VIBRATION MANAGEMENT PLAN (SSCVMP)

The objective of a SSCVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from vibration that does not comply with the Project Vibration Standards. A SSCVMP will be prepared: a) For any unoccupied building, structure or infrastructure for which construction vibration is either predicted or measured to exceed the Project Vibration Standards as detailed in Section 4.2 of this CNV DWP; b) Where a complaint or concern is raised and the vibration level exceeds the amenity levels as detailed in Section 4.3 of this CNV DWP. c) In response to other concerns or complaints where required (refer designation Condition 17). Where the amenity limits are exceeded: a) Best practicable management of vibration will be applied; and b) The vibration activity will be scheduled to avoid disturbance. If this is not practicable then reasonable respite periods will be provided to reduce vibration exposure. The limits identified in Section 4.2 of this CNV DWP may be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place. The SSCVMP will identify: a) The timing and duration of the exceedance; b) Details of the type of activity giving rise to the exceedance; c) Site Specific vibration criteria that addresses the issue(s) of concern (i.e. building damage, amenity and sensitive equipment). Site Specific criteria shall be determined by a suitably qualified independent vibration expert; d) The summary of the communication and consultation undertaken with the receiver. The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not. This information must be included in the SSCVMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11; e) The methods and measures to mitigate vibration effects, including but not limited to, investigating alternative low-vibration construction methods, undertaking high-vibration works outside sensitive times, vibration barriers, building condition surveys, potential to offer temporary relocation of affected receivers, or other offers made by the Requiring Authority and agreed to by the affected receiver. The SSCVMP will be submitted for review to Auckland Council prior to commencing the works included in the SSCVMP as part of the Outline Plan. The works shall then be undertaken in accordance with the SSCVMP confirmed by the Requiring Authority as part of the Outline Plan. A SSCVMP will be prepared for the only notable receiver (Auckland District Court) affected by the works covered in this CNV DWP and for 23-29 Albert Street in accordance with Condition 37.4. In addition, SSCVMPs will be prepared for Stamford Plaza and Stamford Residences in accordance with the agreements they have in place with Auckland Transport.

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SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN (SSCNVMP)

The conditions allow for SSCNMPs and SSCVMPs to be combined to form SSCNVMPs. Some site specific plans may therefore consider both noise and vibration. The SSCNVMPs that have been prepared for the Project cover a particular construction activity, a specific area of works or an individual building and are summarised in Table 11 and are included in full in Appendix I of this CNV DWP. Table 11 SSCNVMPs

Document Reference

Document Name

Revision

Date

CRL-PAT-ENV-CONPLN-001182

Customs Street Intersection Works

3 June 2016

CRL-PAT-ENV-CONPLN-001263

Advanced Utilities Works

3rd June 2016

CRL-PAT-ENV-CONPLN-001189

Albert Street Piling Works

3 June 2016

CRL-PAT-ENV-CONPLN-001187

Excavation Works

3rd June 2016

CRL-PAT-ENV-CONPLN-001184

Tunnel Construction Works

3rd June 2016

CRL-PAT-ENV-CONPLN-001188

Trench Backfilling and Reinstatement Works

3rd June 2016

CRL-PAT-ENV-CONPLN-001264

41 Albert Street

3rd June 2016

CRL-PAT-ENV-CONPLN-001265

District Court

3rd June 2016

CRL-PAT-ENV-CONPLN-001186

Stamford Plaza Hotel

25th May 2016

CRL-PAT-ENV-CONPLN-001185

Stamford Residences

3rd June 2016

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9 COMMUNICATON 9.1

COMMUNICATION

Good community communication practices are a key component for the management of disruption from construction activities. Prior to construction commencing, clear communication channels will be established between the project team and those in the community potentially most affected by construction activities. It is important that information is provided in a transparent and consistent manner in relation to exposure, duration, mitigation and management measures. Designation Condition 36.3(g) requires a record to be kept of communication and consultation with sensitive receivers with regard to construction noise and vibration impacts. A template for keeping this record is provided in Appendix D of this CNV DWP. The record includes details of when the communication/ consultation occurred, what the comments were from the sensitive receivers, where the comments have been incorporated into the CNV DWP and an explanation of where any comments from sensitive receivers have not been incorporated in the CNV DWP, including the reasons why not. Designation Condition 16.1 requires that communication and consultation is undertaken, as soon as reasonably practicable (and at least once following confirmation of construction timing and methodology), with any Notable Noise and Vibration Receivers located within 100 metres of the designation footprint. Again the template for keeping a record of communication and consultation with Notable Noise and Vibration Receivers is provided in Appendix D of this CNV DWP. On-going communication and consultation will be undertaken with notable noise and vibration receivers throughout the duration of construction occurring in the vicinity. This communication will be reported back to the “key contacts” (see designation Condition 13) and the Auckland Council Consent Monitoring officer for their review and confirmation of any further action to be undertaken. The Communication and Consultation Manager for the Project has a key responsibility to keep the community informed of construction activities. The following methodology sets out best practice communication to the community with regards to Noise and Vibration generated by the Project. Further detail on communications procedures for the Project is provided in the Communication and Consultation Plan. 

There will always be a contact person available on site during works, and their contact details will be prominently displayed at the entrance to the site(s) so that they are clearly visible to the public.



Where the contact details for stakeholders are already known (i.e. sensitive receivers and Notable Noise and Vibration Receivers), Connectus’ Communication and Consultation Manager will make contact to engage in a consultative process. This may involve a face to face meeting or may be carried out over the phone as suits the needs of the stakeholder. Through this discussion and an information pack, Connectus will provide stakeholders the following information: 

The nature of the project



The site and facilities layout



Dates for key milestones (road closures, site establishments and disestablishment etc.)



Contact details for the communication process,



The complaints management process.

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Where changes are made to any of the above items, in particular to hours of operation or to likely duration of the operation, affected residents and property owners will be notified.

9.2



Individual notification shall be provided and meetings offered to all neighbours that are predicted to experience noise or vibration levels that exceed the limits detailed in Section 4 of the CNV DWP after the BPO mitigation as detailed in Section 6 has been applied. Where it is impractical to avoid an exceedance, consultation shall be undertaken to avoid significant adverse effects.



Ongoing consultation will be continued throughout the works with Notable Noise and Vibration receivers and any other neighbours raising concerns.



Further information will be regularly provided to affected parties with an update on the progress of the works, and the specific activities (including locations) due to be undertaken next. Updates will be provided every month.



A record will be kept of all communications



All concerns and complaints regarding construction noise and vibration will be dealt with in accordance with Section 9.2 of this CNV DWP.

COMPLAINTS PROCEDURE

Procedures relating to environmental complaints are detailed within Section 6 of the Communication and Consultation Plan (Appendix O of the Project CEMP). All complaints will be recorded in a Project Complaints Register. Connectus will provide Auckland Council's Noise Complaints Team with contact details for the CRL Complaints Team to ensure Auckland Council can pass CRL related noise complaints to the Project quickly. This is intended to minimise the resolution time in the event that a member of the public does not call the CRL Complaints Team directly.

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10 MONITORING A B&K 2250 Sound Level Meter will be located at the site office for the duration of the works. A B&K 2250 Sound Level Meter and two Rion NL21s noise loggers will also be available for use on the Project and stored at the AECOM office (8 Mahuhu Crescent). An Instantel Minimate Plus vibration logger will be stored at the AECOM office.

10.1 NOISE Construction noise will be measured and assessed in accordance with the requirements of New Zealand Standard NZS 6803: 1999 â€œAcoustics - Construction Noiseâ€? Noise monitoring will be conducted by the Acoustic Specialist or trained noise monitoring staff as identified in Section 3 of this CNV DWP. The equipment noise levels detailed in Table 5 are placeholders. All equipment that is predicted to exceed 75 dB LAeq at 5m will be measured operating off-site prior to operation on site, where practicable. Where this is not practicable it will be measured when first operating on site. Actual equipment noise levels at 5m and equipment model numbers will be recorded. This information will be used to update the noise schedules in Appendix C of this CNV DWP within one week of the measurements being undertaken. The SSCNVMPs identify monitoring locations and the timing of monitoring at the most affected receivers. In addition to the monitoring identified in the SSCNVMPs noise monitoring will be carried out at positions representative of noise sensitive locations, see Figure 11, at least every month, to check ongoing compliance with the construction noise limits. The monitoring position will be at first floor level. Figure 11 Noise monitoring locations

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Noise should be measured 1m from the most affected faรงade of the building, or in the area which relates to a noise complaint. If it is not practicable to measure at this position, measurements can be taken at a representative location and adjusted for distance and faรงade reflections if necessary. Measurements should also be taken at a known distance, such as 5m, from the noise generating equipment to establish source noise levels. Additional measurement positions may be necessary if the initial measurement results indicate that noise may exceed criteria at other areas of the building faรงade. These measurements may be undertaken 1m from the faรงade if windows are normally open or inside the building if windows are normally closed. Where internal measurements are required it will be necessary to control noise from local sources, such as people using the telephone, to ensure only construction noise is measured. Noise monitoring will be conducted for 10-15 minutes at each measurement position, during representative construction activity. The noise level will be reported with the measurement duration (e.g. 65 dB LAeq (15min)) Noise monitoring will also be undertaken in response to reasonable noise complaints, or if the construction methodology changes such that noise criteria may be exceeded at other locations. Figure 12 outlines the process to be followed when monitoring noise.

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Figure 12 Noise Monitoring Flowchart

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Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

10.2 VIBRATION Construction vibration levels will be measured and assessed in accordance with the requirements of German Standard DIN 4150-3:1999 “Structural vibration – Part 3: Effects of vibration on structures”. Prior to construction, trial measurements of high-vibration activities will be undertaken to establish Project specific ground attenuation characteristics and safe distances. The SSCNVMPs identify vibration monitoring locations and the timing of monitoring at the most affected receivers. In addition to the monitoring identified in the SSCNVMPs vibration monitoring will be carried out at positions representative of vibration sensitive locations, see Figure 13, at least every month, to check ongoing compliance with the construction vibration limits. Figure 13 Vibration monitoring locations

Vibration monitoring shall only be undertaken by the Acoustic Specialist or trained vibration monitoring staff as identified in Section 3 of this CNV DWP. Vibration shall initially be measured at the closest building foundations (usually at basement or ground floor level) and this requires consent to access the building of interest. Additional measurement positions may be necessary if the initial measurement results indicate that vibration may exceed criteria within other areas of the building. It may also be necessary to measure vibration levels in the habitable areas of buildings in response to a complaint. Vibration monitoring will be conducted during representative construction activities and comprise measurements of peak particle velocity (PPV) at one second intervals. The duration of the vibration measurements will be sufficient to capture the highest vibration level from the source. The vibration monitoring equipment (geophones) will be fixed to building structural members (e.g. with clamps, cable ties, or weighed down with sandbags).

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

The geophones will ideally be located at or near the faรงade of the building facing the vibration source and will be located away from areas where extraneous vibration (e.g. from footfall or building services) could affect the results. The monitoring results shall be used to update the vibration schedules in Appendix B of this CNV DWP within one week of the measurements being undertaken. Vibration monitoring shall also be undertaken in response to reasonable vibration complaints, or if the construction methodology changes such that vibration criteria may be exceeded at other locations. Figure 14 outlines the process to be followed when monitoring vibration.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Figure 14 Vibration monitoring flowchart

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

10.3 REPORTING All noise and vibration monitoring shall be summarised in a report and submitted to the Communication and Consultation Manager and the Environment and Sustainability Manager (ESM) within one week of the assessment. The reports shall be kept at the site office and made available to AT or Auckland Council upon request.

10.4 BUILDING CONDITION SURVEYS A detailed pre-construction building condition survey will be undertaken at all of the identified buildings and services detailed in the vibration schedules, Appendix B, before construction begins on the Project. Designation Condition 46 describes the process for building condition surveys. The building condition surveys will generally be undertaken as follows: 

The building surveys will be undertaken by an independent senior qualified person



The survey shall include: o

Any information about the type of foundations

Existing levels of damage (aesthetic, superficial, affecting levels of serviceability)

Whether observed damage is associated with structural damage

Susceptibility of building or structure to further movement

Photographic evidence



The consent holder will provide the building condition survey structure survey report to the property owner and the Council within 15 working days of the survey being undertaken



If requested by a building or structure owner where a pre-construction survey was undertaken, Connectus will undertake a visual inspection. This is in addition to monthly visual inspections until the completion of Dewatering of the Project



Connectus shall carry out visual inspections of the surrounding ground and external building facades of the listed buildings adjacent to the tunnel trench to monitor any deterioration or movement of any pre-existing cracks

The building condition surveys will be conducted by a suitably qualified person as identified in Section 4.1.2 of the Project CEMP. During the pre-construction building condition survey, it will be determined if the building is classified as Commercial / Industrial / School or a Historic or sensitive structure in terms of designation Condition 33. The foundation type of the building or service will also be determined. The buildings and services may require further surveys during construction if complaints are made or if the vibration criteria have been exceeded. A post-construction condition survey of the same buildings and services will be conducted a week after the conclusion of works in the area that have the potential to generate vibration at levels approaching or exceeding the limits in Condition 33. A report will then be prepared. Where a post-construction building condition survey confirms that the building has deteriorated as the result of construction the damage will be rectified.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

11 CONTINGENCY MEASURES This section describes contingency measures to be implemented in the event that the noise and/or vibration limits specified in an approved SSCNVMP are exceeded. The Communication and Consultation Manager will liaise with affected parties (refer Section 9 of this CNV DWP) throughout the following processes.

11.1 MANAGEMENT PROCESS Where any construction activity is predicted and/or measured to exceed the construction noise or vibration limits the following process will be applied: 

Check that the BPO and all relevant management measures have been implemented (refer Section 7 of this CNV DWP and Section 5 of the relevant SSCNVMP)



Communication and Consultation Manager to consult with all affected parties, as defined in Section 9, to understand their particular sensitivities, including times, activities and locations. The Communication and Consultation Manager or their representative shall be available 24/7.



Carry out noise and/or vibration monitoring of the construction activity to verify the extent of any adverse effects (refer Section 10 of this CNV DWP).



Implement further mitigation and/or contingency measures to avoid significant adverse effects as agreed with the affected party (refer Sections 11.2 to 11.5 of this CNV DWP).

11.2 NOISE If noise monitoring demonstrates non-compliance with the noise limits identified in the approved SSCNVMP, the following procedures shall be implemented: 

Undertake additional noise measurements, as necessary, to determine the extent of the exceedance.



Discuss additional mitigation options with the Project Manager as soon as the extent of the exceedance has been determined. This may include immediately stopping works.



Undertake noise measurements once recommended mitigation measures have been implemented to confirm that the mitigation has been effective and the noise limits are now being met.



Preparation of a report recording the findings of the survey and detailing additional mitigation or management options. Copies of the report will be provided to AT, the Project Manager, Communication and Consultation Manager and Sustainability Manager.

11.3 VIBRATION – BUILDING DAMAGE If vibration monitoring demonstrates non-compliance with the vibration building damage limits identified in the approved SSCNVMP, the construction activity responsible for the exceedance shall cease as soon as safe and practicable to do so. A detailed building condition survey shall then be undertaken by a suitably qualified engineer. The survey shall include, but not be limited to, the following: 

Determination of building specific vibration damage risk thresholds;



Existing condition of building including existing levels of any aesthetic damage or structural damage; Page 57

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016



Recording (including photographs) the major features of the buildings including location, type, construction, age and present condition, including defects (cracks);



Identifying foundation type of the building;



Preparation of a report recording the findings of the survey. A copy of the report will be given to the building owner and another copy will be kept at the site office.

If damage has not occurred then that activity can continue provided the measured vibration level is not exceeded further. If minor damage has occurred, such as cosmetic cracks, further mitigation will be applied if practicable. However, the activity can continue provided the measured vibration level is not exceeded further. If moderate or severe damage has occurred and the best practicable option has been implemented, it will be necessary to stop work, if safe to do so, and investigate alternative construction methods. All damage due to construction activities will be repaired within a reasonable timeframe after the construction phase ceases.

11.4 VIBRATION – AMENITY If a complaint is made by a building occupant with regard to vibration levels, vibration monitoring will be conducted in the relevant rooms of the building. If the limits are found to be exceeded then a SSCVMP will be prepared for that receiver.

11.5 DISCUSSION Where noise and vibration impacts are unavoidable and significant after all reasonable and practicable measures are implemented, alternative mitigation measures, such as temporary relocation or the provision of architectural treatments, will be considered. Temporary relocation involves the relocation of affected occupants for short periods of time where all reasonable and practicable measures and respite periods are implemented and further mitigation is impractical. Architectural treatments may also be sought and involve the provision of alternative ventilation where windows are to remain closed in order to further mitigate noise effects.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX A: ISCA REQUIREMENTS

Page A

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

AT and Connectus are seeking an Infrastructure Sustainability Council of Australia (ISCA) Infrastructure Sustainability (IS) Rating for the CRL Enabling Works. This appendix details IS requirements that are different, or additional to the Project’s Consent Requirements. It is essential that these requirements are met to achieve the Project’s sustainability goals, however they are not consent requirements to be certified by Auckland Council. These IS rating requirements are included as an appendix because they are not yet fixed. They remain subject to change as the Project’s sustainability program evolves. Applicable ISCA requirements that relate to this CNV DWP are listed below along with their associated target Levels. ISCA Category

Target Level

Construction Requirements

How we aim to achieve this

DIS 2 - Noise

Predictions for noise have been developed for construction of the project

Compliance with the CNV DWP

AND Measures to mitigate noise during construction have been identified and implemented

Completed in the AEE Changes dealt with in Section 4 and Site Specific Plans Section 7

AND Monitoring of noise is undertaken at appropriate intervals and in response to complaints during construction

Section 10

AND

Modelling – Section 5, 6, and 8 and Appendix B and C

Modelling and monitoring demonstrates no recurring or major divergence from the noise management process as outlined in the project consents and this CNVMP

Monitoring – Section 9 Section 11 – Noise management process we should not diverge from.

Stretch Target (to achieve level three) Modelling and Monitoring demonstrates no divergence from the noise management process. DIS 3 Vibration

Dilapidation surveys have been undertaken for properties potentially impacted by vibration

Section 10.4

AND Predictions for vibration have been developed for construction of the project

AND

Appendix B + Largely done in the AEE

Section 7

Measure to mitigate vibration during construction have been identified and implemented. AND

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Connectus Project #: 2665 Client: Auckland Transport

ISCA Category

Target Level

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Construction Requirements

How we aim to achieve this

Monitoring of vibration is undertaken at appropriate intervals and in response to complaints during construction.

Section 10

AND Sensitive facilities that may be impacted by vibration have been identified and baseline vibration studies have been carried out

Baseline vibration studies in the AEE

AND Modelling and monitoring demonstrates no exceedances of vibration goals for structural damage to buildings and structures AND

Sections 10 and 11

Section 11

No physical damage has been caused to any building or structures by vibration caused by construction.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX B: Schedule of Identified At-Risk Receivers, Structures and Services (Vibration)

Page B

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Advanced Utilities Relocation This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Area of works

Activity Start Date

Duration

Advanced Utilities Relocation Works

Customs St Intersection Stormwater Works

Early May

50 days

Swanson St West Stormwater Works

Early August

12 days

Swanson St East Early Stormwater Works

Early August

20 days

Swanson St East Stormwater Works ANZ Connection

Early September

15 days

Wyndham St Stormwater Works

Early May

25 days

Kingston-Wyndham St Stormwater Works

Early May

35 days

Combined Service Trench â€“ Western Footpath including crossings

Early May

60 days

Wyndham St Chorus Works

Early June

15 days

Hours

7am â€“ 7pm Mon - Sat

Vibration sources

Equipment

Excavator mounted concrete breaker

Construction activity

Concrete breaking

Emission radius (m) Historic/sensitive

Residential

Commercial

At-risk Receivers

Address

Building type

Distance to works (m)

Risk class

38 Wyndham Street

Commercial

High

3 Albert Street

Commercial

High

63 Albert Street

Commercial

High

65-71 Albert Street

Historic / vibration sensitive

High

Predicted Vibration (no mitigation) PPV

Management/ mitigation required

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Address

Building type

Distance to works (m)

Risk class

12-26 Swanson Street

Commercial

High

61 Albert Street

Historic / Vibration Sensitive

High

57 Albert Street

Historic / Vibration Sensitive

High

41 Albert Street

Historic / Vibration Sensitive

High

58 Albert Street

Commercial

High

52-56 Albert Street

Historic / Vibration Sensitive

High

51 Albert Street

Historic / Vibration Sensitive

High

55 Albert Street

Historic / Vibration Sensitive

High

22 Customs Street

Historic / Vibration Sensitive

High

22-26 Albert Street

Residential

High

11-27 Customs Street

Commercial

Medium

70-74 Albert Street

Residential

High

Bluestone Wall

Historic / Vibration Sensitive

High

34-36 Wyndham Street

Historic / Vibration Sensitive

High

Predicted Vibration (no mitigation) PPV

Management/ mitigation required

At-risk Services (e.g. roads, underground pipes etc.)

Reference

Address

Receiver type/ comments

Distance to works

Risk class (High or Medium)

Management/ mitigation required

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Piling This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Area of works

Activity Start Date

Activity End Date

Hours

Piling

Install CFA piles

Customs Deck 1 through to Wolfe Street - West side

20 Sep2016

05 Oct 2016

South East Quarter

26 Oct 2016

12 Dec 2016

7am – 7pm

South West Quarter

22 Dec 2016

07 Mar 2017

Mon - Sat

North East Quarter

10 Mar 2017

06 Apr 2017

Wolfe Street - West side

24 Apr 2017

26 Apr 2017

Pile Caps and Traffic Decks

Build pile cap & deck

Customs Deck 1 through to Wolfe Street - West side

27 Sep 2016

18 Oct 2016

South East Quarter

02 Nov 2016

23 Dec 2016

South West Quarter

12 Jan 2017

03 Mar 2017

Build cap only West side ANZ to Wolfe Street

27 Feb 2017

15 Mar 2017

North East Quarter

17 Mar 2017

24 Apr 2017

Build deck ANZ to Wolfe Street

13 Apr 2017

08 May 2017

7am – 7pm Mon - Sat

Vibration sources

Equipment

Construction activity

Emission radius (m) Historic/sensitive

Residential

Commercial

Soilmec Hydraulic Rotary Rig (est SR80)

Installation of CFA piles

Excavator mounted concrete breaker

Utilities location and exposure and installation of pile cap

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

At-risk Receivers

Address

Building type

Distance to works (m)

Risk class

Predicted Vibration (no mitigation) PPV

Management/ mitigation required

Installation of CFA piles 22 Customs Street

Historic / vibration sensitive

Medium

5 Albert Street

Historic / vibration sensitive

9 Albert Street

Historic / vibration sensitive

13 Albert Street

Historic / vibration sensitive

15 Albert Street

Historic / vibration sensitive

17 Albert Street

Historic / vibration sensitive

Medium Medium Medium Medium Medium

Utilities Location and Installation of Pile Caps 22 Customs Street

Historic / vibration sensitive

High

5 Albert Street

Historic / vibration sensitive

High

9 Albert Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

High

17 Albert Street

Historic / vibration sensitive

High

23-29 Albert Street

Commercial

High

55 Albert Street

Historic / vibration sensitive

High

61 Albert Street

Historic / vibration sensitive

High

41 Albert Street

Historic / vibration sensitive

High

57 Albert Street

Historic / vibration sensitive

High

38 Wyndham Street

Commercial

High

58 Albert Street

Commercial

High

63 Albert Street

Commercial

High

8 Albert Street

Residential

High

70-74 Albert Street

Residential

High

22-26 Albert Street

Residential

High Page 4

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

At-risk Services (e.g. roads, underground pipes etc.)

Reference

Address

Receiver type/ comments

Distance to works

Risk class (High or Medium)

Management/ mitigation required

Excavation This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Remove existing road surface

Excavation 1st Layer

Excavation 2 to Bottom

Area of works

Activity Start Date

Activity End Date

Hours

South end to Ch550

23 Mar 2017

28 Mar 2017

Ch550 to Swanson

23 Mar 2017

27 Mar 2017

7am – 7pm

Swanson to Wolfe

26 May 2017

30 May 2017

Mon – Sat

Wolfe to North end

03 Jul 2017

05 Jul 2017

South end to Ch550

29 Mar 2017

04 Apr 2017

Ch550 to Swanson

28 Mar 2017

19 Apr 2017

7am – 7pm

Swanson to Wolfe

31 May 2017

28 Jun 2017

Mon – Sat

Wolfe to North end

06 Jul 2017

02 Aug 2017

South end to Ch550

21 Apr 2017

01 Sep 2017

Ch550 to Swanson

20 Apr 2017

07 Sep 2017

7am – 7pm

Swanson to Wolfe

29 Jun 2017

05 Dec 2017

Mon – Sat

Wolfe to North end

03 Aug 2017

23 Mar 2018

Vibration sources

Equipment

Excavator mounted concrete breaker

Construction activity

Pre-drilling

Emission radius (m) Historic/sensitive

Residential

Commercial

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

At-risk Receivers

Address

Building type

Distance to works (m)

Risk class

Predicted Vibration (no mitigation) PPV

Management/ mitigation required

Pre-drilling 6 Albert Street

Historic / vibration sensitive

High

17 Albert Street

Historic / vibration sensitive

High

15 Albert Street

Historic / vibration sensitive

High

13 Albert Street

Historic / vibration sensitive

High

9 Albert Street

Historic / vibration sensitive

High

7 Albert Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

High

58 Albert Street

Commercial

High

51 Albert Street

Historic / vibration sensitive

High

38 Wyndham Street

Commercial

High

61 Albert Street

Historic / vibration sensitive

High

52-56 Albert Street

Historic / vibration sensitive

High

57 Albert Street

Historic / vibration sensitive

High

55 Albert Street

Historic / vibration sensitive

High

41 Albert Street

Historic / vibration sensitive

High

23-29 Albert Street

Commercial

High

63 Albert Street

Commercial

Medium

46-50 Albert Street

Historic / vibration sensitive

High

12-26 Swanson Street

Commercial

Medium

12 Albert Street

Mixed Use

High

70-74 Albert Street

Mixed Use

High

22-26 Albert Street

Residential

High

Page 6

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

At-risk Services (e.g. roads, underground pipes etc.)

Reference

Address

Receiver type/ comments

Distance to works

Risk class (High or Medium)

Management/ mitigation required

Trench Backfilling and Reinstatement This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Trench Backfill

Road surface reinstatement

Area of works

Activity Start Date

Activity End Date

South end to Swanson

27 Nov 2017

12 Apr 2018

Swanson to Wolfe

05 Mar 2018

03 Jul 2018

Wolfe to North end

16 Aug 2018

22 Nov 2018

South end to Swanson

13 Apr 2018

09 Jul 2018

Swanson to Wolfe

04 Jul 2018

11 Sep 2018

Wolfe to North end

23 Nov 2018

25 Jan 2019

Hours

7am – 7pm Mon – Sat

Vibration sources

Equipment

Construction activity

Roller Compactor (17t)

Emission radius (m)

Fill compaction and road surface reinstatement

Historic/sensitive

Residential

Commercial

At-risk Receivers

Address

Building type/ comments

Distance to works

Risk class (High or Medium)

22 Customs Street

Historic / vibration sensitive

High

5 Albert Street

Historic / vibration sensitive

High

9 Albert Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

Medium

Predicted Vibration (no mitigation) PPV

Management/ mitigation required

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Address

Building type/ comments

Distance to works

Risk class (High or Medium)

17 Albert Street

Historic / vibration sensitive

High

55 Albert Street

Historic / vibration sensitive

High

61 Albert Street

Historic / vibration sensitive

High

41 Albert Street

Historic / vibration sensitive

High

57 Albert Street

Historic / vibration sensitive

High

8 Albert Street

Residential

High

70-74 Albert Street

Residential

High

22-26 Albert Street

Residential

Medium

Predicted Vibration (no mitigation) PPV

Management/ mitigation required

At-risk Services (e.g. roads, underground pipes etc.)

Reference

Address

Receiver type/ comments

Distance to works

Risk class (High or Medium)

Management/ mitigation required

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX C: Schedule of Identified At-Risk Receivers (Noise)

Page C

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Advanced Utilities Works This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Area of works

Activity Start Date

Duration

Advanced Utilities Relocation Works

Customs St Intersection Stormwater Works

Early May

50 days

Swanson St West Stormwater Works

Early August

12 days

Swanson St East Early Stormwater Works

Early August

20 days

Swanson St East Stormwater Works ANZ Connection

Early September

15 days

Wyndham St Stormwater Works

Early May

25 days

Kingston-Wyndham St Stormwater Works

Early May

35 days

Combined Service Trench – Western Footpath including crossings

Early May

60 days

Wyndham St Chorus Works

Early June

15 days

Hours

7am – 7pm Mon - Sat

Equipment Noise Levels

Works Phase

Equipment

Sound pressure level dB LAeq 5m

Advanced Utilities Works

10m

20m

50m

Concrete Saw

Vacuum Excavation truck

Excavator (5t)

Jackhammer

Excavator mounted concrete breaker

Truck

Hand compactor

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Predictions

102

3 Albert Street

Commercial

101

61 Albert Street

Mixed Use

100

57 Albert Street

Commercial

100

17 Albert Street

Commercial

100

9 Albert Street

Mixed Use

100

5 Albert Street

Commercial

100

41 Albert Street

Residential

100

38 Wyndham Street

Commercial

23-29 Albert Street

Commercial

12-26 Swanson Street

Commercial

65-71 Albert Street

District Court

22-26 Albert Street

Residential

34-36 Wyndham Street

Commercial

90 -

76 100

Customs Street Watermain

Swanson Street Stormwater - West

Swanson Street Stormwater - East

Customs Street Stormwater - Northeast

Customs Street Stormwater – Southwest

80 -

Chorus Wyndham Street

Wyndham Street Permanent Works

Commercial

Wyndham Street Temporary Diversion

63 Albert Street

Kingston Street to Wyndham Street Stormwater

Vector Gas - Mills Lane to Swanson Street

Vector Communications – Customs Street to Mills Lane

Combined Services Trench

Minimum Distance to Works (m)

Building Use

Address

Predicted worst case noise levels (no mitigation), dB LAeq

100

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

33 Wyndham Street

Commercial

8 Albert Street

Mixed Use

70-74 Albert Street

Mixed Use

22 Customs Street

Commercial

26 Wyndham Street

Commercial

18 Federal Street

Residential

6 Wolfe Street

Vacant

9 Wolfe Street

Commercial

29 Customs Street

Commercial

46-50 Albert Street

Commercial

81 Albert Street

Mixed Use

76 Albert Street

Residential

4 Kingston Street

Commercial

100 -

100

76 -

77 80

76 80

82 -

78 -

91 79

Mitigation

Page 3

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Intersection Piling and Road Deck Construction This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Area of works

Activity Start Date

Activity End Date

Hours

SP1 Advance Utilities Works Install Vector services trench Customs Wyndham

Customs â€“ Wyndham St

01 Apr 2016

Install Customs pipejack

MH in Lower Albert

01 Apr 2016

29 Apr 2016

7am to 7pm

MH in South West

10 Jun 2016

23 Jun 2016

Mon - Sat

Customs Intersection

24 Jun 2016

21 Jul 2016

27 May 2016

7am to 7pm Mon - Sat

Services and Enabling Works Cut back curb

Galleria block

09 May 2016

03 Jun 2016

Locate & Protect Services

Customs Deck 1

10 Jun 2016

16 Jun 2016

Customs Deck 2

10 Jun 2016

16 Jun 2016

Customs Deck 3

05 Sep 2016

09 Sep 2016

Customs Deck 4

02 Dec 2016

08 Dec 2016

7am to 7pm Mon - Sat

Piling Pile

Customs Deck 1

20 Jun 2016

05 Jul 2016

7am to 7pm

Customs Deck 2

09 Jul 2016

20 Jul 2016

Mon - Sat

Customs Deck 3

13 Sep 2016

15 Sep 2016

Customs Deck 4

09 Dec 2016

15 Dec 2016

Pile Caps and Traffic Decks Customs St Deck

Section 1

06 Jul 2016

16 Aug 2016

7am to 7pm

Section 2

21 Jul 2016

31 Aug 2016

Mon - Sat

Section 3

20 Sep 2016

24 Nov 2016

Section 4

16 Dec 2016

22 Feb 2017

The activity involves service location and exposure, installation of CFA piles, jet grouting, excavation and support of exposed services, binding and fixing of reinforcement, placement of concrete and installation of permanent wearing course (night). The activity also includes demolition of the stormwater pumping station and stormwater line. Equipment Noise Levels

Works Phase

Equipment

Type of works

Sound pressure level dB LAeq 5m

CEP 308-001 Customs Street Intersection

10m

20m

50m

Concrete core drill (type TBC)

Surface removal and service clearing

Vacuum Excavation (type TBC)

Surface removal and service clearing

64 Page 4

Connectus Project #: 2665 Client: Auckland Transport

Works Phase

Equipment

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Type of works

Sound pressure level dB LAeq 5m

Piling and Road Deck Construction

10m

20m

50m

Soilmec Hydraulic Rotary Rig (est SR80)

Auger drilling and pile casing installation

Concrete Truck

Concrete delivery

Crane

Service crane and pile reinforcement install

Mecbo tracked Concrete Pump

Concrete placement

Excavator (est 15t)

Excavation post piling

SM-20 Hydraulic Micro drilling Rig

Jet Grouting

Hydro-demolition high pressure pump

Removal of concrete encasement on SW main

Bob cat loader

Handling materials

Crane (est. 40t)

Unloading and placing service supports, steel reinforcement and formwork

Concrete saw

Demolition of storm water chamber roof

Angle grinder

Pile breaking

Excavator mounted concrete breaker

Break back over pour on the piles

Concrete vibrators

Concrete placement

Roller compactor

Installation of permanent wearing course

Concrete boom pump

Placement of concrete in deck slab

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Predictions

Predicted worst case noise levels (no mitigation), dB LAeq

Jet Grouting

Excavation and support of exposed services

Binding and fixing of reinforcement

Placement of concrete

Stormwater pumping station demolition

Stormwater line demolition

Mixed use (commercial/ residential)

Commercial

Address

Building Use

Minimum Distance to works (m)

Service location and exposure

Installation of CFA piles

22 Customs Street

Commercial

3 Albert Street

Commercial

29 Customs Street

Commercial

8 Albert Street 5 Albert Street

Mitigation

Page 6

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Albert Street Piling and Capping Beam This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Area of works

Activity Start Date

Activity End Date

Hours

Piling

Install CFA piles

Customs Deck 1 through to Wolfe Street - West side

20 Sep2016

05 Oct 2016

South East Quarter

26 Oct 2016

12 Dec 2016

7am â€“ 7pm

South West Quarter

22 Dec 2016

07 Mar 2017

Mon - Sat

North East Quarter

10 Mar 2017

06 Apr 2017

Wolfe Street - West side

24 Apr 2017

26 Apr 2017

Pile Caps and Traffic Decks

Build pile cap & deck

Customs Deck 1 through to Wolfe Street - West side

27 Sep 2016

18 Oct 2016

South East Quarter

02 Nov 2016

23 Dec 2016

South West Quarter

12 Jan 2017

03 Mar 2017

7am â€“ 7pm

Build cap only West side ANZ to Wolfe Street

27 Feb 2017

15 Mar 2017

Mon - Sat

North East Quarter

17 Mar 2017

24 Apr 2017

Build deck ANZ to Wolfe Street

13 Apr 2017

08 May 2017

The activity involves service location and exposure, installation of CFA piles and installation of pile caps. Equipment Noise Levels

Works Phase

Equipment

Type of works

Sound pressure level dB LAeq 5m

CEP 309-001 Albert Street Piling and Capping Beam

10m

20m

50m

Concrete core drill

Surface removal and service clearing

Vacuum Excavation

Surface removal and service clearing

Soilmec Hydraulic Rotary Rig (est SR80)

Auger drilling and pile casing installation

Crane est 40t

Service crane and pile reinforcement install

Mecbo tracked Concrete Pump

Concrete placement

Concrete truck

Concrete delivery

Hydraulic rock splitter

Installation of pile cap

Excavator (est 15t)

Excavation post piling

59 Page 7

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Predicted worst case noise levels (no mitigation), dB LAeq

Address

Building Use

Minimum Distance to Works (m)

Utilities Location and exposure

Installation of CFA Piles

Installation of Pile Caps

15 Albert Street

Vacant

13 Albert Street

Vacant

9 Albert Street

Mixed Use (commercial / residential)

5 Albert Street

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

22 Customs Street

Commercial

51 Albert Street

Commercial

41-45 Albert Street

Residential

23-29 Albert Street

Commercial

38 Wyndham Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

61 Albert Street

Mixed Use (commercial / residential)

57 Albert Street

Commercial

55 Albert Street

Commercial

37-39 Albert Street

Construction Site

35 Albert Street

Construction Site

52-56 Albert Street

Commercial

22-26 Albert Street

Residential

8 Albert Street

Mixed Use (commercial / residential)

70-74 Albert Street

Mixed Use (commercial / residential)

46-50 Albert Street

Commercial

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Predicted worst case noise levels (no mitigation), dB LAeq

Address

Building Use

Minimum Distance to Works (m)

Utilities Location and exposure

Installation of CFA Piles

Installation of Pile Caps

12-26 Swanson Street

Commercial

65-71 Albert Street

District Court

34-36 Wyndham Street

Commercial

29 Customs Street

Commercial

33 Wyndham Street

Commercial

76 Albert Street

Residential

26 Wyndham Street

Commercial

6 Wolfe Street

Vacant

9 Wolfe Street

Commercial

18 Federal Street

Residential

Mitigation

Mitigation is required to meet the noise criteria at the nearest sensitive receivers. The general noise control measures outlined in Section 7 of the CNV DWP will be implemented. Where additional mitigation is required to meet the noise criteria it is detailed in the Albert Street Piling SSCNVMP or the SSCNVMPs for specific receivers. Trench Excavation This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Construction Activity

Remove existing road surface

Excavation 1st Layer

Area of works

Activity Start Date

Activity End Date

Hours

South end to Ch550

23 Mar 2017

28 Mar 2017

Ch550 to Swanson

23 Mar 2017

27 Mar 2017

7am â€“ 7pm

Swanson to Wolfe

26 May 2017

30 May 2017

Mon - Sat

Wolfe to North end

03 Jul 2017

05 Jul 2017

South end to Ch550

29 Mar 2017

04 Apr 2017

Ch550 to Swanson

28 Mar 2017

19 Apr 2017

Swanson to Wolfe

31 May 2017

28 Jun 2017

Wolfe to North end

06 Jul 2017

02 Aug 2017

7am â€“ 7pm Mon - Sat

Page 9

Connectus Project #: 2665 Client: Auckland Transport

Construction Activity nd

Excavation 2 to Bottom

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Area of works

Activity Start Date

Activity End Date

Hours

South end to Ch550

21 Apr 2017

01 Sep 2017

Ch550 to Swanson

20 Apr 2017

07 Sep 2017

7am â€“ 7pm

Swanson to Wolfe

29 Jun 2017

05 Dec 2017

Mon - Sat

Wolfe to North end

03 Aug 2017

23 Mar 2018

The activity involves removal of the existing road surface, trench excavation and installation of ground support struts. Two steel temporary construction platforms will be installed at CH350 and CH480. These platforms will be used to provide spoil loading points for the material being excavated from the trench. The platforms will be of a sufficient size to support 10-tonne trucks accessing from Albert St, and an 80T crane operating with a clamshell bucket. Equipment Noise Levels

Works Phase

Equipment

Type of works

Sound pressure level dB LAeq 5m

CEP 311-001 Excavation and Spoil Handling

10m

20m

50m

Crawler crane with clamshell bucket 80t

General works, installing temp works, excavation

Excavators 12-20t

Excavation, installing temp works

7684

7078

6472

5664

Front end wheel loader

Spoil handling

6-wheel tipper trucks

Spoil handling, spoil cartage

Long reach excavator

Excavation

Page 10

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Predictions

Predicted worst case noise levels (no mitigation), dB LAeq

Address

Building Use

Minimum Distance to works (m)

9 Albert Street

Mixed Use

5 Albert Street

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

15 Albert Street

Vacant

13 Albert Street

Vacant

22 Customs Street

Commercial

38 Wyndham Street

Commercial

61 Albert Street

Mixed Use

57 Albert Street

Commercial

55 Albert Street

Commercial

41 Albert Street

Residential

23-29 Albert Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

46-50 Albert Street

Commercial

52-56 Albert Street

Commercial

12-26 Swanson Street

Commercial

37-39 Albert Street

Construction Site

Removal of existing road surface

Excavation of 1st Layer

Excavation of 2nd layer to bottom

Rock fall protection netting

Shotcrete placement

Pre-drilling

Drilling and rock dowel installation

Page 11

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

70-74 Albert Street

Mixed Use

35 Albert Street

Construction Site

22-26 Albert Street

Residential

8 Albert Street

Mixed Use

65-71 Albert Street

District Court

34-36 Wyndham Street

Commercial

33 Wyndham Street

Commercial

Mitigation

Page 12

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Waterproofing and Tunnel Construction This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project.This schedule provides specific assessment of the following activity: Construction Activity Tunnel Box Construction

Area of works

Activity Start Date

Activity End Date

South end to Swanson

28 Aug 2017

26 Jan 2018

Swanson to Wolfe

01 Dec 2017

05 Jun 2018

Wolfe to North end

26 Mar 2018

15 Aug 2018

Hours

7am – 7pm Mon - Sat

The activity includes construction of the tunnel which will be a rolling process with multiple work faces progressing together. The works will start at the south end of Albert Street, once the excavation plant is clear of the base of the tunnel and all the TW have been installed and signed off. The tunnel construction will be broken into 12m lengths and into the following tasks: 

Base drainage and blinding



Waterproofing



Base foundation construction



Wall construction – side walls and dividing walls poured at the same time.



Roof construction



Roof waterproofing

Equipment Noise Levels

Works Phase

Equipment

Type of works

Sound pressure level dB LAeq 5m

CEP 320-001 Waterproofing and Tunnel Construction

10m

20m

50m

Telehandlers

Moving materials

Telescopic Crawler Crane

Moving and placement of materials

Crawler crane (surface) est 50t

Material lowering from delivery bay to workface

Mobile concrete pump

Concrete placement

Static pump and boom

Concrete placement

Metal beams*

Steel fixing

88*

82*

76*

68*

Rough terrain scissor lift

Working platforms for wall works

Page 13

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Predictions

Predicted worst case noise levels (no mitigation), dB LAeq

Address

Building Use

Minimum Distance to works (m)

22 Customs Street

Commercial

38 Wyndham Street

Commercial

58 Albert Street

Commercial

46-50 Albert Street

Commercial

52-56 Albert Street

Commercial

12-26 Swanson Street

Commercial

8 Albert Street

Mixed Use

70-74 Albert Street

Mixed Use

63 Albert Street

Commercial

22-26 Albert Street

Residential

17 Albert Street

Commercial

15 Albert Street

Vacant

13 Albert Street

Vacant

9 Albert Street

Mixed Use

5 Albert Street

Commercial

61 Albert Street

Mixed Use

57 Albert Street

Commercial

55 Albert Street

Commercial

51 Albert Street

Commercial

41 Albert Street

Residential

23-29 Albert Street

Commercial

3 Albert Street

Commercial

34-36 Wyndham Street

Commercial

37-39 Albert Street

Construction Site

65-71 Albert Street

District Court

35 Albert Street

Construction Site

Mitigation Mitigation is required to meet the noise criteria at the nearest sensitive receivers. The general noise control measures outlined in Section 7 of the CNV DWP will be implemented. Where additional mitigation is required to meet the noise criteria it is detailed in the Tunnel Construction SSCNVMP or the SSCNVMPs for specific receivers.

Trench Backfilling This is a schedule to the Construction Noise and Vibration DWP for the CRL Contract 2 Enabling Works project. This schedule provides specific assessment of the following activity: Page 14

Connectus Project #: 2665 Client: Auckland Transport

Construction Activity

Trench Backfill

Road surface reinstatement

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Area of works

Activity Start Date

Activity End Date

South end to Swanson

27 Nov 2017

12 Apr 2018

Swanson to Wolfe

05 Mar 2018

03 Jul 2018

Wolfe to North end

16 Aug 2018

22 Nov 2018

South end to Swanson

13 Apr 2018

09 Jul 2018

Swanson to Wolfe

04 Jul 2018

11 Sep 2018

Wolfe to North end

23 Nov 2018

25 Jan 2019

Hours

7am â€“ 7pm Mon - Sat

The activity involves backfilling the trench once the tunnel construction works have progressed sufficiently to provide a suitable length for the filling operation to be carried out (approximately 50m). The backfilling will then continue to follow the tunnel construction as it progresses. Delivery of the granular backfill material into the trench will be primarily by a conveyor system mounted at ground level (at the top of the trench). Within the trench the fill material will be spread using small to medium sized excavators and bobcat loaders, and compacted in layers using a combination of roller compactors and plate compactors. The two steel temporary construction platforms installed at CH350 and CH480 will be used to provide loading points for the construction works within the trench. Equipment Noise Levels

Works Phase

Equipment

Type of works

Sound pressure level dB LAeq 5m

CEP 316-001 Trench Backfilling

10m

20m

50m

7179

6573

5967

5159

Excavators 5-15t

Spreading fill material, removing temp works

Front end wheel loader

Fill handling

Bobcat loader

Fill handling

6-wheel tipper trucks

Fill delivery

Roller compactors

Compacting fill

Plate compactors

Compacting fill in low clearance areas

Concrete pump

Pumping flowable fill to site

Predictions

Address

Building Use

Minimum Distance to works (m)

9 Albert Street

Mixed Use

5 Albert Street

Predicted worst case noise levels (no mitigation), dB LAeq Trench Backfilling

Road surface reinstatement

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

15 Albert Street

Vacant

Page 15

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Address

Building Use

Minimum Distance to works (m)

13 Albert Street

Vacant

22 Customs Street

Predicted worst case noise levels (no mitigation), dB LAeq Trench Backfilling

Road surface reinstatement

Commercial

38 Wyndham Street

Commercial

61 Albert Street

Mixed Use

57 Albert Street

Commercial

55 Albert Street

Commercial

51 Albert Street

Commercial

41 Albert Street

Residential

23-29 Albert Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

46-50 Albert Street

Commercial

52-56 Albert Street

Commercial

12-26 Swanson Street

Commercial

37-39 Albert Street

Construction Site

70-74 Albert Street

Mixed Use

35 Albert Street

Construction Site

8 Albert Street

Mixed Use

65-71 Albert Street

Residential

22-26 Albert Street

District Court

34-36 Wyndham Street

Commercial

33 Wyndham Street

Commercial

26 Wyndham Street

Commercial

Mitigation

Page 16

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX D: RECORD OF COMMUNICATION / CONSULTATION WITH NOTABLE AND SENSITIVE RECEIVERS

Page D

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Address of Sensitive Receiver

Representatives

Date

Comment

Resolution

41 Albert Street (Albert Street Apartments)

Interview on site with building manager, Body Corporate Chair, and a further resident representative

9/11/15

1. Some residents are at home during the daytime period so will be affected by day time construction activities. 2. All apartments are naturally ventilated so windows overlooking Albert Street are open in most apartments during the day. 3. Ground floor is commercial and currently vacant but the owner is looking to sell it. 4. Concern about the cumulative effects of noise from the Project and noise from construction on 2 adjacent sites. 5. They would like a SSCNVMP for the building 1. Raised general concerns about noise intrusion into the office areas that would prevent them from working. 2. Raised general concerns about the vibration effects of piling

With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the 41 Albert Street SSCNVMP implemented, works may be audible but will not be at a level that disturbs residents.

12-26 Swanson Street (NZ trade Centre)

Interview on site with building owner representatives, and representatives of all major tenants

11/11/15

Vibration may be felt but will not be at a level that damages the building. Further discussions have taken place with the affected residents during week commencing 14th March 2016 to discuss the proposed resolution. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the SSCNVMPs (Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works may be audible but will not be at a level that interferes with business operations. Vibration may be felt but will not be at a level that damages the building. This resolution was discussed at the meeting on 11th November 2015.

Page 1

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Address of Sensitive Receiver

Representatives

Date

Comment

Resolution

22 Customs Street DFS Galleria

Interview on site with building owner representative, Australasian Operations Manager, and New Zealand Deputy Store Manager

11/11/15

1. Raised general concerns about noise impact on the business 2. Raised concerns about vibration effects on the building

3. Building owner wants on-site noise and vibration monitoring throughout construction.

Secondary glazing has been specified for some rooms. Vibration may be felt but will not be at a level that damages the building. Section 7 of the SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) provides details of the proposed noise and vibration monitoring.

8a Albert Street CityMed Doctors

Interview with building owners and representatives

11/11/15

1. Activities taking place on site are highly sensitive to vibration, and these include surgery and blood collection. Other activities include: radiology, pharmacy, and physiotherapy.

63 Albert Street (AMI Insurance)

Interview with business operator on site

16/11/15

1. Raised general concerns about noise and vibration impact on their operation.

This resolution has been discussed with the building owner and manager via emails during January and March 2016. During further consultation with the City Med doctors representatives and a site visit it was established that most of the noise and vibration sensitive activities take place in the centre of the building or towards the back so will not be affected by the construction works. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the SSCNVMPs (Customs Street Intersection,

Page 2

Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Date

Comment

Resolution Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works may be audible but will not be at a level that interferes with business operations. Vibration may be felt but will not be at a level that damages the building.

22/26 Albert Street Expresso Coffee School

Follow up discussion with business owner and general inspection of faรงade, ventilation etc

17/11/15

1. Noise concerns as door is open all day 2. Noise impact on outside seating area

22/26 Albert Street United Travel

Follow up discussion with business owner and general inspection of faรงade, ventilation etc

17/11/15

1. Concerned about noise impacting their operations. They speak to customers all day in person or on the telephone so need reasonably quiet working environment 2. Noise break-in through the door could be an issue as there is a 1-2cm gap around the perimeter of the door. The landlord is proposing to install some seals to rectify this. 1. Needs a quiet environment for clients 2. Treatment rooms are adjacent to the faรงade overlooking Swanson Street 3. Also concerned about vibration

22/26 Albert Street Thai Massage

60 Albert Street City Gardens Apartments

Follow up discussion with business owner and general inspection of faรงade, ventilation etc

Interview on site with Body Corporate Committee

20/11/15

17/11/15

1. Not too concerned about noise and vibration as they are set back from the street 2. Happy that piling is CFA rather than

This resolution was discussed at the meeting on 16th November 2015. With the barriers installed as specified in Section 7 of the CNV DWP and Section 4 of this SSCNVMP noise from all construction activities will comply with the Project Noise Standards at this receiver. With the barriers installed as specified in Section 7 of the CNV DWP and Section 4 of this SSCNVMP noise from all construction activities will comply with the Project Noise Standards at this receiver. With door seals fitted, as currently proposed by the landlord, construction noise will not be at a level that impacts the business operations of this receiver. With the barriers installed as specified in Section 7 of the CNV DWP and Section 4 of this SSCNVMP noise from all construction activities will comply with the Project Noise Standards at this receiver. Vibration is unlikely to be at perceptible levels in this receiver. Noise and vibration are unlikely to be at perceptible levels in any area of this building from the Albert Street Piling works.

Page 3

Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Date

Comment

Resolution

driven

23-29 Albert Street ANZ Tower Vero

Interview on site with operations manager

19/11/15

1. No concerns over predicted noise and vibration levels

23-29 Albert Street ANZ Tower Chapman Tripp

Interview on site with operations manager

20/11/15

1. No concerns over predicted noise and vibration levels

20/11/15

1. Doors always open during summer 2. Not too concerned about noise and vibration

Interview on site with operations manager

24/11/15

General inspection of some of the hotel rooms, office area and café with operations and maintenance managers

30/11/15

1. General concerns about noise and vibration and impact on their business. Office space and café on 1st floor, swimming pool on 5th floor, floors 5 to 29 are hotel rooms 1. Hotel rooms – with balcony doors closed the rooms are quiet. Very little traffic noise break-in. All rooms are mechanically ventilated 2. Pool area – glass door with no seals opens onto the balcony overlooking Albert Street. Traffic noise levels are masked by mechanical services noise and noise from patrons using the pool. 3. Conference room on levels 5 does not overlook Albert Street 4. Café – doors open onto balcony where there is a seating area. 1-2cm gap around the perimeter of the doors when

17d Albert Street 7 Mart 8a Albert Street Sebel Hotel

Interview on site with business owner

Noise and vibration due to the Project are unlikely to be at perceptible levels in the area of this building occupied by Vero. This th was discussed during the meeting on 19 November 2015. Noise and vibration due to the Project are unlikely to be at perceptible levels in the area of this building occupied by Chapman Tripp. This was discussed during the meeting on 20th November 2015. No comments to incorporate as owner has no noise or vibration concerns. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works will be audible but will generally not be at a level that interferes with business operations or disturbs guests. In the SSCNVMPs recommendations have been made to provide acoustic seals to the reception and café doors facing onto Albert Street. Further consultation will take place with the affected parties before works begin to determine if the works can be scheduled for a time that least impacts them.

Page 4

Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Date

1/12/15

17a Albert Street iDarts

Interview on site with Body Corporate Committee Interview on site with business owner

9-11 Albert Street Food Alley

Interview on site with operations manager

1/12/15

3 Albert Street Bakery

Interview with owner

4/12/15

30/11/15

Comment

Resolution

closed. Doors sometimes left open depending on the weather. Music is played reasonably loudly and masks traffic noise. 5. Office areas – Single glazing. No door or window openings in the façade. 6. Reception – glass doors with 1-2cm gap around the perimeter. Ventilation noise quite loud and music playing. Traffic noise is barely audible. 1. General concerns about noise and vibration impacts

Vibration may be felt but will not be at a level that damages the building.

1. Operates between 3pm and 2am 2. Not concerned about noise and vibration. The bar area is towards the back of the building. They play music quite loud so construction noise is likely to be inaudible. 1. General concerns about noise and vibration. 2. Doors are automated but they open frequently and are sometimes left permanently open during the summer months. 3. There is a reasonable amount of background noise from cooking and other operations within the space. Traffic noise is barely audible. 4. 16 residential apartments on floors 6 and 7 which are all naturally ventilated.

No comments to incorporate as owner has no noise or vibration concerns.

1. Not concerned about noise and vibration 2. Doors open all day so already exposed to high levels of traffic noise.

Section 7 of the SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) provides details of the proposed noise and vibration monitoring.

With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works will be audible but will generally not be at a level that interferes with business operations or disturbs the residents. Vibration may be felt but will not be at a level that damages the building. This resolution was discussed during the meeting on 1st December 2015. No comments to incorporate as owner has no noise or vibration concerns.

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Date

Comment

3. 17 Albert Street  Kerry Harding, Chair of the Body Corporate, Floor 5  Stephen Ingram, Floor 8  Inna Benitez, Floor 4  Catherine Ellman, Floor 11  Chris Laycock, Building Manager  Ashley Bottles, Level 7  Victoria Toon, level 12  Phil Bussant, from Quay West who operates car parks to level 17  David Haines, from Haines Planning

Interview at CRL project offices with the building manager, body corporate chair and tenants representatives

23 – 29 Albert Street ANZ Tower ANZ

Interview on site with the facilities lead, senior support services representative and senior work place manager

7/12/15

1. 2. 3.

Particularly heavy vehicles pulling away from the traffic lights. Radio playing loudly so it can be heard over the traffic noise. Mostly offices with a few residential apartments Particular concerns regarding vibration. Already experiencing rattling windows and building vibration from nearby construction works. Building is mechanically ventilated during business hours

Resolution

With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works will be audible but will not be at a level that interferes with business operations or disturbs the residents. In the SSCNVMPs recommendations have been made to inspect the window seals and replace as necessary. Secondary glazing is also recommended for the Language School classrooms overlooking Albert Street. The recommendations will help mitigate airborne noise ingress and should also help prevent the windows from rattling.

Vibration may be felt but will not be at a level that damages the building. 8/12/15

1. They occupy the building from the ground floor to floor 31 2. They work from 8am to 6pm with some late functions and VIP events 3. Mostly concerned about noise impact on the ground floor Pavilion Meeting Suites, the café area and the ground floor reception 4. Noise break in through the revolving

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Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Date

Comment

Resolution

doors a concern 5. If they have an important meeting they would like to inform Connectus so that noisy works can be scheduled outside of this time.

operations. The only exception is the ground floor reception / café area where high noise levels may be experienced when works are directly outside of the building. Vibration may be felt but will not be at a level that damages the building. Further consultation has taken place with th this receiver on 4 March 2016 to discuss the potential noise levels in the ground floor area. The café operator took part in the discussion. Noise measurements were taken simultaneously on both sides of the revolving doors. Noise break-in through the doors was found to be less than predicted. Both ANZ and the café owner are willing to accept noise levels of up to 65 dB LAeq for short durations providing that they are well informed of the works.

29 Customs Street AMP Building Kindercare

Interview on site with the property manager

8/12/15

1. They occupy the ground floor of the AMP building 2. Operating from 7am until 6pm 3. External playground adjacent to Customs Street 4. Babies area is closest to the works and they sleep for longer so impact on them

The café owner would appreciate it if noisy works immediately outside of the building stopped during the lunch time period as that is the busiest time for them. ANZ will inform Connectus of any special functions that they may have in the ground floor area and would appreciate it if noisy works could be avoided at these times. Vibration from construction activities associated with the Customs Street intersection works will not be at a level that interferes with business operations and or disturbs the children. Noise from construction activities associated

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Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

5 Albert Street NZ Gifts

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Interview on site with the business owner

Date

10/12/15

Comment

Resolution

is the main concern 5. Buildings mechanically ventilated but door is open for access to the playground area all day. 6. Although exposed to high traffic noise levels they donâ€™t find it intrusive

with the Customs Street intersection works will generally be lower than the current traffic noise levels experienced by the child care facility. In sleeping areas the noise level due to construction activities will be 35 dB LAeq or below.

1. Building is mechanically ventilated. They have automatic doors which are not kept open. Background music playing at a low volume 2. Operational hours are 9.30am to 9.30pm 3. General noise concerns 4. Concerned about vibration rattling items on the shelves

This resolution was discussed during the meeting on 8th December 2015. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works may be audible but will generally not be at a level that interferes with business operations. Vibration may be felt but will not be at a level that damages the building.

74 Albert Street Barclay Suites

Interview on site with the general manager

11/12/15

1. Hotel is mechanically ventilated. Front doors leading into the reception are good and reasonably loud background music is playing so traffic noise is not audible. 2. Rooms have sliding doors opening onto balconies and windows are single glazed laminate. 3. Not too concerned about noise and vibration as long as communication is good

This resolution was discussed during the meeting on 10th December 2015. Section 9.1 of the Project CNV DWP details the communication procedures that will be implemented on the Project.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Address of Sensitive Receiver

Representatives

Date

Comment

Resolution

65-71 Albert Street District Court

Interview on site with the Auckland Programme Manager

16/12/15

1. The courts generally operate from 8am to 5pm 2. Courts on level 2 and above. They use electronic transcription and the microphones are extremely sensitive to noise and vibration so low background noise levels are required. 3. All windows are single glazed and the building is mechanically ventilated 4. Layout drawings for each floor were provided so we can see the location of all noise sensitive areas

Secondary glazing is recommended for the second and third floor court rooms on the Albert Street faรงade. Scheduling of construction activities is of particular importance at this location to avoid adverse noise and vibration impacts. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the District Court SSCNVMP implemented, works may be audible but will not be at a level that interferes with the courts operations. Discussions with the District Court are ongoing with regard to the mitigation and management measures.

38 Wyndham Street Hollywood Bakery

Interview on site with the manager

16/12/15

8a Albert Street CityMed Doctors

Interview on site with doctors representatives

22/12/15

1. Operating hours are 6.30am -4.30pm 2. Front doors are permanently open onto Wyndham Street. Traffic noise quite loud especially when vehicles pull away from the traffic lights. Low level background noise music 3. They have some external seating on Albert Street. 4. The bakery sits mostly below the level of Albert Street. 1. Operating hours are from 8am to 5.30pm Monday to Friday 2. Doctor consultation rooms run along the Mills Lane faรงade of the building. The faรงade is fully glazed. All rooms are mechanically ventilated. 3. The 2 operating theatres are at the

No comments to incorporate as no noise or vibration concerns were raised.

The noise and vibration sensive areas of the building are generally located in the centre of the building or at the back away from the Albert Street faรงade. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Sections 5.1 and 5.2 of the

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Connectus Project #: 2665 Client: Auckland Transport

Address of Sensitive Receiver

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Representatives

Date

Comment

Resolution

back of the building near the car park ramp, furthest from Albert Street. They perform minor operations under local anaesthetic. 4. The radiology area is on the Mills Lane faรงade in the corner furthest from Albert Street.

SSCNVMPs (Customs Street Intersection, Albert Street Piling, Excavation, Tunnel Construction and Trench Backfilling) implemented, works may be audible but will generally not be at a level that interferes with business operations.

5. The radiology operators have no concerns over noise or vibration 6. ECG and audiometry sit within the building away from the faรงades. These are the activities that are most sensitive to noise and vibration. 7. To get to the reception you currently go through the front doors then through another set of doors. However, they are renovating in the New Year and the reception area will be moved closer to the Albert Street faรงade and will be accessed through the front doors. 8. The front doors are glass sliding doors with a large gap at the bottom and no seals.

Vibration may be felt but will not be at a level that damages the building. This resolution was discussed during the nd meeting on 22 December 2015.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX E: RECORD OF CLG & INDEPENDENT PEER REVIEW COMMENTS

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

CLG COMMENTS Comment Date ID

Time

Forum

Commenter Comment

Resolution

13/10/2015

1730-1900

CLG Meeting

Tim Coffey

The plan doesn't identify how noise complaints made to Auckland Council will be directed to the project and managed in a timely fashion. The concern is that many people will follow a traditional course of action and phone AC with noise complaints instead of contacting the CRL project directly.

The CRL Project team work closely with Auckland Council and will provide the CRL contact details to the AC Noise Complaints Team. Section 9 of the CNV DWP will have the following text added: "Connectus will ensure Auckland Council's Noise Complaints Team are provided with contact details for the CRL complaints team to ensure CRL related noise complaints received by AC are passed on quickly"

13/10/2015

1730-1900

CLG Meeting

Tim Coffey

This opportunity is being investigated by Connectus. It is more relevant to the Communications plan than the CNV DWP. No change is proposed to the CNV DWP

13/10/2015

1730-1900

CLG Meeting

Tim Coffey

Will people contacting the CRL project to make complaints be issued with a 'complaint reference number' or similar to make it easy to complain again about the same issue? Traffic noise - There is concern that traffic going over bumps or causing temporary pavement components to move will generate noise. This should be addressed in the plan.

The CNV DWP will be modified to address this issue. A new subsection (Section 7.8) will be added to the plan. Mitigation measures will include securing loose manhole covers and traffic decks to avoid movement where practicable, or to reduce noise/movement via the inclusion of rubber pads where practicable. In addition, efforts will be made to avoid bumps in the road surface which could lead to tyre noise.

Page 1

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

INDEPENDENT PEER REVIEW – CNV DWP Peer Reviewer: Dr Stephen Chiles Date: 10th November 2015 and 3rd March 20162 Commenter

Date

Forum

CNV DWP Section

Comment

Recommendations

Dr Stephen Chiles

10/11/15

Independent Peer Review

The high level split of content between the CEMP, CNV DWP and other DWPs is not clear in the introduction (e.g. communications and complaints procedures are detailed in other parts of the CEMP)

Add a brief summary to section 1 setting out those aspects of construction noise and vibration management which are detailed outside the CNV DWP.

Dr Stephen Chiles

10/11/15

Independent Peer Review

1.1

The CNV DWP is subject to prescriptive review and approval conditions. The process needs to be recorded in the CNV DWP or at least referenced to the relevant place in the CEMP.

Expand the second paragraph of 1.1 to make explicit reference to the processes set out in conditions 22 and 23 (which may limit the extent this can effectively be a living document).

The comment that the CNVMP is a living document is in accordance with good practice, but this is constrained in this instance by the prescriptive conditions. The timeframes needed for review and approval prevent timely updating of some information so alternative methods may be required. Dr Stephen Chiles

10/11/15

Independent Peer Review

Resolution Summary added to Section 1

Section 1.1 expanded to include the additional information

If it is intended that schedules in the Appendix will be updated without review/approval that should be explicitly stated.

Details or explanation of induction forms and ‘relevant schedules’ should be added.

Details added as requested and an example of an induction form has been included in Appendix F

A second peer review was undertaken on 03/03/16 in conjunction with the SSCVMP’s and also due the inclusion of utilities and an updated traffic deck methodology.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Commenter

Date

Forum

Dr Stephen Chiles

10/11/15

Independent Peer Review

CNV DWP Section

Comment

Recommendations

5.1

The second paragraph references updated information being included in Appendix C, but that provides data in a different format.

The process should either be for Table 5 to be updated directly or a duplicate table should be set out in an appendix. Ideally Table 5 would be updated. Any required reviews/approvals associated with updating the information should be set out in the CNV DWP.

Technically it is not necessary for updates to equipment data to be reviewed or approved. However, this might be required under the conditions. Dr Stephen Chiles

10/11/15

Independent Peer Review

5.1

Mains power should be used as good practice noise and vibration management. Generators are included in the equipment list but this contradicts section 7.4 which lists use of mains power as a mitigation measure in section.

Clarify to what extent mains power will be used, and if so remove generators from the equipment list.

Dr Stephen Chiles

10/11/15

Independent Peer Review

5.1

Condition 36.3(d) requires identification of construction areas

It should be clarified that most works phases set out in tables 5 and 6 will occur throughout the construction area.

Dr Stephen Chiles

10/11/15

Independent Peer Review

5.1.1

Table 7 indicates that all construction activities would be likely to exceed the noise limits without mitigation.

Add note that all activities are likely to require mitigation.

Dr Stephen Chiles

10/11/15

Independent Peer Review

5.2

Reference is made to Table 8 being updated but no details are provided as to how this will occur.

As for updates to Table 5, there should be a process set out for updates to Table 8. Reference should be made to Appendix B.

Resolution Appendix C has been update to include Tables in the same format as Table 5

Clarification has been added.

Note added

Further information has been added as requested.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Commenter

Date

Forum

Dr Stephen Chiles

10/11/15

Independent Peer Review

5.2

Vibration sources should be related to works phases (as has occurred for noise sources).

Dr Stephen Chiles

10/11/15

Independent Peer Review

6.1

Add building addresses to Figure 8

Dr Stephen Chiles Dr Stephen Chiles

10/11/15

Independent Peer Review Independent Peer Review

6.2

Add building addresses to Figure 9

Dr Stephen Chiles

10/11/15

Independent Peer Review

7.2

Add requirement for training to include familiarisation with noise and vibration limits and resulting effects on neighbours.

Dr Stephen Chiles

10/11/15

Independent Peer Review

7.4

Broadband reversing alarms should be used for all mobile equipment.

Dr Stephen Chiles

10/11/15

Independent Peer Review

7.7

Show where noise barriers will be located on plans and specify their construction details.

10/11/15

CNV DWP Section

Comment

Scheduling of activities can be a key tool for managing construction noise and vibration effects. This might include respite periods during the day and avoidance of activity on certain days, as well as limiting night works. Given that many neighbours are commercial, in some specific locations night works might be preferable.

Recommendations

Add a subsection on how scheduling may be used to mitigate noise and vibration effects.

Resolution Table containing vibration sources now relates to work phases

Addresses added Addresses added Subsection added

Added information as requested

Figure showing noise barriers has been added. Further details regarding barrier construction and enclosures has been added

Provide details of relocatable noise barriers and enclosures that will be kept on site.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Commenter

Date

Forum

CNV DWP Section

Comment

Recommendations

Dr Stephen Chiles

10/11/15

Independent Peer Review

Dr Stephen Chiles

10/11/15

Independent Peer Review

The conditions allow for combined SSCVMPs and SSCNMPs as SSCNVMPs. For specific locations identified in both 8.1 and 8.2 it would be preferable to use combined SSCNVMPs.

Add a subsection noting that some site specific plans may cover both noise and vibration.

Dr Stephen Chiles

10/11/15

Independent Peer Review

Statements are made about how equipment data will be updated following measurements but no timeframes are set.

It should be specified that all equipment (predicted to exceed a certain noise level) will be measured off site, prior to operation on site where practicable, and when first operating on site if this is not practicable. The equipment tables/schedules should be updated within one week of the measurements.

Dr Stephen Chiles

10/11/15

Independent Peer Review

Noise and vibration monitoring locations are only loosely defined as including all receivers, although routine monitoring is at unspecified representative positions. It would be better to mark specific monitoring locations to be used on a plan. Additional locations could be used in response to specific complaints or activities, but the use of standardised positions will assist in monitoring through the duration of the works.

Add figures showing standard noise and vibration monitoring positions that will be used (not simply all receivers).

Dr Stephen Chiles

10/11/15

Independent Peer Review

Add a list of all SSCNVMPs/SSCNMPs/SSCVMPs.

Add details of noise and vibration monitoring equipment and where it will be stored during the works.

Resolution List added

Subsection added

Information added as requested

Figures added

Equipment details added

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Commenter

Date

Forum

CNV DWP Section

Comment

10.1

Consideration could be given to use of continuous noise monitoring stations with remote access and alarms.

Dr Stephen Chiles

10/11/15

Independent Peer Review

Dr Stephen Chiles

10/11/15

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

2.2

Any road cutting outside the hours of 7am to 7pm would breach condition 36.3(b)

Dr Stephen Chiles

03/03/16

Independent Peer Review

7.7

Most receivers are multi-storey buildings which will not receive screening from a 1.8m high barrier.

Dr Stephen Chiles

03/03/16

Independent Peer Review

8.3

Dr Stephen Chiles

03/03/16

Independent Peer Review

10.1

Monitoring positions should be representative of floors of buildings that are not screened by the perimeter barrier.

Specify the height for the monitoring positions in Figure 11 to be at first floor level.

Dr Stephen Chiles

03/03/16

Independent Peer Review

Appendices B &C

Due to the quantity of information, the linear presentation is hard to navigate.

Condense the tables of predictions and â€˜at riskâ€™ receivers into matrices of results to allow quicker reference to key information.

Dr Stephen Chiles

03/03/16

Independent Peer Review

Appendices B &C

Tables in Appendices B & C are duplicated in SSCNVMPs. It is likely to lead to inconsistencies if information is maintained in two separate documents.

Use cross references between the CNV DWP and SSCNVMPs to avoid duplicate tables appearing in both.

Appendices B &C

Recommendations

Resolution Continuous noise and vibration monitoring stations will be set up at Stamford Plaza

Add details on timing of activities.

Timing details added Road cutting will not occur outside of these hours

Investigate higher perimeter barriers, in addition to localised screening of specific activities.

Add a table of document reference numbers, versions and dates for all SSCNVMPs

2m high noise barriers have been considered and they provide less than 1 dB of additional attenuation at the receivers. Connectus have indicated that going higher than this will be problematic due to space restrictions. Taller barriers will require greater structural support and there is no space for this. Added

Added

Amended as requested

Cross references added

Page 6

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Commenter

Date

Forum

Dr Stephen Chiles

03/03/16

Independent Peer Review

CNV DWP Section

Comment

Recommendations

Appendix D

In several cases the “resolution” to concerns raised by stakeholders is that no action is required as noise and vibration levels will be reasonable. It is not clear whether this outcome has been explained to the stakeholders who raised the concerns.

Record when the resolution was discussed with the stakeholder.

Comment

Recommendations

Resolution Dates of these discussions added

INDEPENDENT PEER REVIEW – SSCNVMP Peer Reviewer: Dr Stephen Chiles rd

Date: 3 March 2016 Commenter

Date

Forum

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

SSCNVMP all/multiple SSCNVMPs

Delete glossary and cross reference the CNV DWP.

Resolution Deleted as requested

Glossary all/multiple SSCNVMPs

Add the document reference number, version and date for the CNV DWP

Added as requested

Section 1 all/multiple SSCNVMPs Section 2 all/multiple SSCNVMPs Sections 3 and 4 Dr Stephen Chiles

03/03/16

Independent Peer Review

all/multiple SSCNVMPs Section 5

Conditions 38.4 and 38.5(c) set out how specific vibration criteria should be determined.

Add assessment of vibration affected buildings and specific criteria adopted.

Tables in SSCNVMPs are duplicated in Appendices B & C of the CNV DWP. It is likely to lead to inconsistencies if information is maintained in two separate documents.

Use cross references between the CNV DWP and SSCNVMPs to avoid duplicate tables appearing in both.

Before detailing mitigation, it is necessary to set out the specific effects that are being mitigated. In some cases this is partly addressed

Add details of specific effects on receivers that might result from exceedances of the noise and vibration criteria.

Added

Cross references added

Effects added

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Commenter

Date

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Forum

SSCNVMP

Comment

Recommendations

Resolution

when discussing internal levels but it does not always explicitly set out residual noise and vibration effects. Dr Stephen Chiles

03/03/16

Independent Peer Review

all/multiple SSCNVMPs

Various mitigation measures are listed as â€œif possibleâ€?. The SSCNVMPs should detail specific mitigation that will be implemented and not general good practice measures that are already in the CNV DWP.

Update the mitigation tables to list specific measures that will be implemented.

Section 5.1

Major sound sources in many of the SSCNVMPs are mobile machinery, which can often be attenuated with additional exhaust silencers.

Determine whether it is practical to fit additional exhaust silencers to equipment and, if so, add this as an action to the list of noise control measures.

all/multiple SSCNVMPs

There are recommendations relating to treating buildings but no actions.

There should be actions set out for all building treatment required.

The same treatment for the same buildings is recommended in several SSCNVMPs. There needs to be a single place where the treatment for each building is documented.

Only include details of treatment for each building in one SSCNVMP and then cross reference from other SSCNVMPs where relevant.

Section 5

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

all/multiple SSCNVMPs

Tables updated

Connectus considers that it is not practical to fit additional exhaust silencers to equipment as it causes other problems such as decreasing engine efficiency, increase fuel burn and void warranties. Connectus will require that all machinery brought to site has exhaust silencers fitted that are free from rust holes and function as intended. Actions added

Section 5.1 all/multiple SSCNVMPs Section 5.1 Dr Stephen Chiles

03/03/16

Independent Peer Review

all/multiple SSCNVMPs

Specify that for secondary glazing the existing window must be sealed before installing the secondary window.

Section 5.1 Dr Stephen Chiles

03/03/16

Independent Peer Review

all/multiple SSCNVMPs Section 6

The table of stakeholder consultation duplicates information in Appendix D of the CNV DWP and in other SSCNVMPs.

Remove the table of stakeholder communication from the SSCNVMPs and replaced with cross references to the relevant lines of Appendix D of the CNV DWP, together with a brief summary of actions arising.

Cross references added

Added

Table removed and cross references added

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Commenter

Date

Forum

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

SSCNVMP

Comment

all/multiple SSCNVMPs

Recommendations Specify that monitoring is at first floor level (unless a specific location at a higher level is specified.

Section 7.1 Customs Street Intersection

Control of compactor vibration should include consideration of the frequency as well as mass.

Resolution Added

Added

Section 5.2 Customs Street Intersection

Cross reference building condition surveys required by the CNV DWP.

Cross reference added

Section 5.2 Customs Street Intersection Section 6 Customs Street Intersection Section 6

Dr Stephen Chiles

03/03/16

Independent Peer Review

Dr Stephen Chiles

03/03/16

Independent Peer Review

An issue raised with the 8a Albert Street CityMed Doctors front door and reception relocation has not been addressed.

Improved sound insulation of the reception area should be investigated with CityMed Doctors.

Equating construction noise to existing traffic noise at the Kindercare facility at 29 Albert Street might understate the potential effects due to the different character of the sound. Potential mitigation, if required, might involve scheduling.

Add more detail on the effects of construction noise on children sleeping.

Trench Backfilling

Control of compactor vibration should include consideration of the frequency as well as mass.

Section 5.2 41 Albert Street Section 5.2 Dr Stephen Chiles

03/03/16

Independent Peer Review

41 Albert Street Section 5.3

Ventilation meeting G4 of the Building Code is not sufficient to prevent residents having to open windows.

Specify that ventilation systems installed will with the requirements in the Transport Agency State highway guide to acoustic treatment of buildings. Add reference to CNV DWP relating to building condition surveys, and the process for these being repeated

This was discussed with CityMed. We have offered to review their design once they have it in place and advise on sound insulation improvements where necessary. Added

Added

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Connectus Project #: 2665 Client: Auckland Transport

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APPENDIX F: CONSTRUCTION NOISE AND VIBRATION INDUCTION

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Project: CRL Contract 2 Enabling Works 1. There are numerous residential and commercial neighbours in close proximity to the works, where noise and vibration limits apply. To ensure limits are achieved, all staff are responsible for good noise and vibration management. 2. When arriving at work, please drive slowly on site and keep revs to a minimum. Keep stereos off and do not slam doors. 3. No shouting or swearing on site. Either walk over and talk to somebody or use a radio/phone. 4. Be careful with tools and equipment. Place them down and do not drop them. 5. Do not drag materials on the ground. Place them down when you arrive at the work area. 6. Equipment and vehicles should not be left running when not in use. 7. When loading trucks try not to drop material from a height. Load softer material at the bottom. 8. Noise enclosures should always have all doors/hatches closed when the equipment is in use. 9. All equipment is to be well maintained. 10. No work shall be conducted outside the hours of 0700h to 2200h without specific approval (contact the site manager) and all staff involved in the task have read and signed the Construction Noise Management Schedule for that task. 11. All staff will read and sign the Construction Noise Management Schedule for a particular task. 12. If you see anything/anyone making unnecessary noise or vibration then stop it/them. If the source cannot be stopped then report it to the site manager. 13. It is essential that good relationships are maintained with the local community. Any queries from members of the public should be responded to politely and referred to the site manager or Communication and Consultation Manager. Staff shall assist the public to make contact with this person. Staff shall not enter into debate or argue with members of the public.

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APPENDIX G: NOISE MONITORING TEMPLATE

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Date: _ _ / _ _ / 20 _ _ Equipment set used

Operator: Model:

Serial No. :

Date of last calibration: _ _ / _ _ / 20 _ _

MEASUREMENT DESCRIPTION  Machinery / operational noise (Not at a receiver)

 Noise at a receiver location

Construction location:

Receiver address:

Distance to machinery / operation:

(m)

Distance to receiver:

(m)

Describe noise sources (e.g. roller, piling, generator) and the location relative to the receiver:

Describe any other unrelated noises (e.g. traffic noise) and the location relative to the receiver:

Describe any reflecting surfaces (e.g. walls, buildings) and the location relative to the receiver:

Describe any other factors such as barriers/terrain, or relative elevations of sources and receivers:

It is useful to attach an aerial photograph where possible. If this is done include the following details:  Location of site activity

 Measurement Locations

 Location of reflecting surfaces

 Relative heights

 Locations of unrelated sources

 Intervening barriers/terrain

It is also useful to include photographs or diagrams of the measurement location, the major sound sources, and any other details you believe may be useful.  Additional documents attached

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

MEASUREMENT DETAILS

Location reference

Time

Measurement duration, t

LAeq(t)

LAFmax

Adjustment for façade reflection

Equipment operating on site

Sounds heard at measurement location (note dominant and LAFmax sounds) Construction equipment

Other sources

Compliance achieved (y/n)

____h  Constant noise  Cyclic noise

__:__ _ _ . _ dB

_ _ . _ dB

min:sec

____h  Constant noise  Cyclic noise

__:__ min:sec

____h  Constant noise  Cyclic noise

__:__ min:sec

____h  Constant noise  Cyclic noise

__:__ min:sec

NOTES Please include any issues that were encountered during the measurements or other factors that may influence the validity of this measurement. FURTHER ACTIONS Update the noise schedules in Appendix C of this CNV DWP to reflect the measured noise levels. Update the SSCNVMPs that are applicable to the specific construction activities that were taking place during the monitoring with the measurement results.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX H: VIBRATION MONITORING TEMPLATE

Page H

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

Date: _ _ / _ _ / 20 _ _ Equipment set used

Operator: Model:

Serial No. :

Date of last calibration: _ _ / _ _ / 20 _ _

MEASUREMENT DESCRIPTION  Machinery / operational vibration (Not at a receiver)

 Vibration at a receiver location

Construction location:

Receiver address:

Distance to machinery / operation:

(m)

Horizontal Distance to receiver:

(m)

Floor Number: Describe vibration sources (e.g. roller, piling, concrete breaking) and the location relative to the receiver:

Describe any other unrelated vibration (e.g. traffic, other construction, footfall, lifts) and the location relative to the receiver:

Describe geometry of foundation (e.g. walls, buildings) and the location relative to the receiver:

Describe the coupling method (geophone to structure)

Describe approximate composition of ground between source and receiver (e.g. basalt, sandstone)

Describe structural resonance observed, if any. For example swaying at higher floors – note the approximate frequency and magnitude.

It is useful to attach an aerial photograph where possible. If this is done include the following details:  Location of site activity

 Measurement Locations

 Location of intervening geometry

 Relative heights

 Locations of unrelated sources

 Changes in composition of terrain

It is also useful to include photographs or diagrams of the measurement location including building plans where available, the major vibration sources, and any other details you believe may be useful. It is important to note whether the measurement was at the foundation, or in the plane of the highest floor.  Additional documents attached

Page 1

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

MEASUREMENT DETAILS

Location reference

Time

Measurement PPV duration, t

Dominant axis of movement

Dominant frequency, Hz

Equipment operating on site

Vibrations observed at measurement location

Compliance achieved (y/n)

Construction equipment

Other sources

____h  Continuous  Transient

__:__ min:sec

__._ mms-1

____h  Continuous  Transient

__:__ min:sec

__._ mms-1

____h  Continuous  Transient

__:__ min:sec

__._ mms-1

____h  Continuous  Transient

__:__ min:sec

__._ mms-1

Page 2

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

NOTES Please include any issues that were encountered during the measurements or other factors that may influence the validity of this measurement. FURTHER ACTIONS Update the vibration schedules in Appendix B of this CNV DWP to reflect the measured vibration levels.

Page 3

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 06, Date: 3 June 2016

APPENDIX I: SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLANS

Page I

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: CUSTOMS STREET INTERSECTION Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001182 Revision: 04

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Site Specific Construction Noise and Vibration Management Plan: Customs Street Intersection

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001182

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev 01

Date 26/01/2016

Details st

Author

Approver

Draft for Peer Review

C. Drewery

C Hind

Draft for Peer Review

C. Drewery

C Hind

22/02/2016

21/03/2016

Final

C. Drewery

C Hind

3/06/2016

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................9

Predicted Noise and Vibration levels ................................................................................ 10 4.1

Noise

4.2

Vibration

Mitigation ......................................................................................................................... 12 5.1

Noise

5.2

Vibration

Communication and Consultation..................................................................................... 14

Monitoring ....................................................................................................................... 15

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 15

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

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Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

1 INTRODUCTION This plan is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the ‘Project’). This SSCVNMP provides specific assessment of construction noise and vibration effects from the Customs Street Intersection component of the Project. The SSCNVMP should be read in conjunction with the CNV DWP, Document Ref: CRL-PATENV-CON-PLN-000903 Revision 6 dated 3rd June 2016, as it contains further details of the Project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

The objective of this SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on sensitive receivers resulting from construction noise and vibration that does not comply with the Project Standards defined in Section 1.2 of the CNV DWP.

1.2

SITE PLAN

Figures 1 and 2 show the location and stages of construction for the Customs Street Intersection traffic deck. Figure 1 Site Plan

Customs Street Intersection Work Area

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

Figure 2 Concrete deck construction stages

2 RECEIVERS Receivers where noise levels due to Customs Street Intersection works have the potential to exceed project noise standards are listed in Table 1, along with building use. The building at 11-27 Customs Street is going to be demolished with tenants beginning to move out early this year so it has not been considered in this SSCNVMP. Table 1 Affected receivers

Historic / vibration sensitive

Address

Building use

22 Customs Street (DFS Galleria)

Commercial

3 Albert Street 29 Customs Street (AMP Building)

Commercial

8 Albert Street (City Med and Quay West) 5 Albert Street (NZ Gifts)

Mixed use (commercial/ residential)

Commercial

Minimum Distance to Works, m 3

Noise Criteria, dB dB LAeq LAFmax 75 -

Vibration Criteria, (mm/s) 3

75*

90*

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

Designation Condition 38.4 allows for the Project vibration limits to be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place. Based on the building condition surveys and the initial assessments by the structural engineer the vibration limits will not be reduced.

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours of operation, are shown in Table 2 below. Table 2 Construction activities

Construction Activity

Area of works

Activity Start Date

Activity End Date

Hours

SP1 Advance Utilities Works Install Vector services trench Customs Wyndham

Customs â€“ Wyndham Street

31 May 2016

Customs Street Stormwater Works

Lower Albert Street

31 May 2016

05 Jul 2016

7am to 7pm

Customs Intersection

12 Sep 2016

21 Oct 2016

Mon - Sat

26 Jul 2016

7am to 7pm Mon - Sat

Utilities and Enabling Works Cut back curb

Galleria block

13 Jul 2016

09 Aug 2016

Locate & Protect Utilities

Customs Deck 1

12 Sep 2016

16 Sep 2016

Customs Deck 2

12 Sep 2016

16 Sep 2016

Customs Deck 3

08 Dec 2016

14 Dec 2016

Customs Deck 4

20 Mar 2017

24 Mar 2017

7am to 7pm Mon - Sat

Piling Piling

Customs Deck 1

20 Sep 2016

05 Oct 2016

7am to 7pm

Customs Deck 2

10 Oct 2016

20 Oct 2016

Mon - Sat

Customs Deck 3

15 Dec 2016

19 Dec 2016

Customs Deck 4

11 Apr 2017

19 Apr 2017

Pile Caps and Traffic Decks Road Deck Construction

Section 1

06 Oct 2016

28 Nov 2016

7am to 7pm

Section 2

21 Oct 2016

05 Dec 2016

Mon - Sat

Section 3

22 Dec 2016

10 Mar 2017

Section 4

20 Apr 2017

15 Jun 2017

Ground and Stormwater Management Projects Dewatering System

Customs Street Intersection.

June 2017

Nov 2018

24 hours a day, 7 days a week.

The projects dewatering system will Page 9

Connectus Project #: 2665 Client: Auckland Transport

Construction Activity

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

Area of works

Activity Start Date

Activity End Date

Hours

be located in various positions within the intersection dependent on traffic control requirements. Details of construction equipment that is likely to be used for each of the above activities and the associated noise levels can be found in Appendix C of the CNV DWP. Details of the equipment that is expected to generate high levels of vibration can be found in Appendix B of the CNV DWP. The equipment levels detailed in Appendices B and C of the CNV DWP are placeholders. All equipment will be measured operating independently and then actual equipment noise/ vibration levels and model numbers will be recorded and updated within the table.

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of the receiver are shown below in Table 3. These levels correspond to the construction equipment being located at its nearest position to the receiver and assume there is no physical mitigation between the noise source and the faรงade of the building. The predicted noise levels take into account whether works are being carried out at ground level or below the ground. Table 3 Predicted noise levels (no mitigation)

Address

Predicted worst case noise levels (no mitigation), dB LAeq

Service location and exposure 22 Customs Street 3 Albert Street 29 Customs Street 8 Albert Street 5 Albert Street Installation of CFA piles 22 Customs Street 3 Albert Street 29 Customs Street 8 Albert Street Jet Grouting 22 Customs Street 3 Albert Street 29 Customs Street 8 Albert Street 5 Albert Street Excavation and support of exposed services 22 Customs Street 3 Albert Street

Project Noise Standards exceedance, dB

96 90 80 77 76

21 15 5 2 1

95 89 79 76

20 14 4 1

99 93 83 80 79

24 18 8 5 4

88 82

13 7 Page 10

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

Binding and fixing of reinforcement 22 Customs Street 3 Albert Street 29 Customs Street 8 Albert Street 5 Albert Street Placement of concrete 22 Customs Street 3 Albert Street Stormwater pumping station demolition 22 Customs Street 3 Albert Street 29 Customs Street Stormwater line demolition 22 Customs Street 3 Albert Street Ground and stormwater management 22 Customs Street 3 Albert Street 29 Customs Street 8 Albert Street

4.2

97 91 81 78 77

22 16 6 3 2

90 84

15 9

93 87 77

18 12 2

91 85

16 10

88 88 86 69

13 13 11 9 (during the night)

VIBRATION

Address Installation of CFA piles 22 Customs Street 3 Albert Street

Building type

Distance to works (m)

Risk class

Historic / vibration sensitive

Medium

Commercial

Medium

Installation of permanent wearing course 22 Customs Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

Medium

Binding and fixing of reinforcement 22 Customs Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

Medium

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

less than assumed for the emission radius. Monitoring will be carried out at the earliest opportunity on site to determine the adjustments for ground conditions and actual equipment items.

5 MITIGATION 5.1

NOISE

Mitigation is required to meet the noise criteria at the nearest sensitive receivers. In addition to the general noise and vibration control measures outlined in Section 7 of the CNV DWP, the following specific noise mitigation measures should be implemented (Table 5): Table 5 Specific Noise Mitigation Measures

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Crane

Use straps rather than chains unless a risk assessment deems the use of straps unsafe.

Concrete Cutting

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when: 

Cutting within 300mm of a kerb or canopy structure



Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

When use of a mobile acoustic enclosure is not practicable works will be planned so that saw cutting directly in front of a receiver is completed within a total of two working days. The building owner will be contacted prior to this occurring to see if the works can be scheduled for a time that least impacts them. Vacuum Excavation

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

Dewatering system

Erect 1.8m noise barriers around the dewatering system. Fully enclose the pumps and generator that will operate through the night to achieve a noise level of 75 dB(A) at 5m or locate the pumps and generator more than 100m from the closest façade of 8 Albert Street during the night time period.

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be least 1.8m high and have a mass equal to or greater than 2 10 kg/m . Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. Indicative location of noise barriers is shown in green in Figure 3 below.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

Figure 3 Noise barriers

5.1.1

Internal noise levels

With the above mitigation and management measures implemented and barriers installed, the noise levels at the most exposed faรงade of 22 Customs Street and 3 Albert Street will still exceed the noise criteria by more than 5 dB during some Project construction activities. The building at 3 Albert Street comprises a ground floor podium with a tower on top. The tower is occupied by offices. It has a glass faรงade and all offices are mechanically ventilated. The attenuation provided by the faรงade is predicted to be 35 dB Rw. Noise levels in the tower section of the building will remain below 45 dB LAeq for the majority of the works. Faรงade sound insulation improvements are therefore not considered necessary at this receiver. The bakery / cafe on the ground floor of 3 Albert Street is the most exposed area of the building. The doors are kept wide open all day and so they are already exposed to high levels of traffic noise, particularly heavy vehicles pulling away from the traffic lights. The radio plays loudly so it can be heard over the traffic noise. To reduce construction noise levels further it would be necessary to fit acoustic seals around the door and to keep it shut during construction activities, except to allow for the timely entry and egress of customers. The business owner indicated that he is not concerned about construction noise and is likely to keep the doors open as usual. Faรงade sound insulation improvements are therefore not currently being considered for this receiver. The building at 22 Customs Street houses a number of retail outlets. It is a masonry building with single glazed timber sash windows. All areas are mechanically ventilated. Music is played in the retail areas masking external noise ingress. Construction noise is unlikely to be an issue in the retail areas as it will be masked by the background music and general operational noise. Traffic noise was clearly audible in the meeting room overlooking Albert Street. The window in this room does not seal adequately when shut and noise break in around the window frame was noticeable. Details of the building treatment that is required for this receiver is detailed in the Albert Street Piling SSCNVMP Document Ref: CRL-PAT-ENV-CON-PLN-001189. With the building treatment applied noise levels in the office/ meeting rooms will meet the AS/NZS 2107:2000 criterion of 45 dB LAeq.

Page 13

Connectus Project #: 2665 Client: Auckland Transport

5.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

VIBRATION

In addition to the general noise and vibration control measures outlined in Section 7 of the Project CNV DWP the following specific vibration mitigation measures (Table 6) should be implemented if the initial on site vibration monitoring demonstrates that the building damage vibration limits will be exceeded: Table 6 Specific Vibration Mitigation Measures

Equipment/process

Vibration control measures

Excavator mounted rock breaker

Use lower vibration generating equipment such as a hand held jack hammer when within 20m of 22 Customs Street.

Roller compactor (17t)

Use a smaller compactor, less than 10t, when within 20m of 22 Customs Street. The frequency of the compactor should also be considered. It may be acceptable to use a bigger compactor depending on the frequency it is being operated at.

A detailed pre-construction building condition survey will be undertaken at all of the identified buildings in accordance with Section 10.4 of the CNV DWP.

6 COMMUNICATION AND CONSULTATION Section 9.1 of the Project CNV DWP details the communication procedures for the Project. The complaints process is detailed in Section 9.2 of the CNV DWP. Consultation with the stakeholders identified in this SSCNVMP took place from mid-November to midDecember 2015. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Proposed mitigation and management measures



Construction of their buildings



Operational hours of their businesses



Operating environment that is required by the businesses

Further details of the meetings and comments made by the stakeholders are provided in Appendix D of the CNV DWP.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001182 Revision: 04, Date: 3 June 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out 1m from the faรงade of the Bakery at 3 Albert Street when Project works commence on Customs Deck 1 to confirm noise levels are as predicted. Further monitoring will be carried out at this location when piling, jet grouting and rock breaking commence on Customs Deck 1. Noise monitoring will be carried out at 22 Customs Street when Project works begin on Customs Deck 3 to confirm that noise levels both externally, 1m from the faรงade, and internally, in the most exposed retail area and the level 2 meeting/ training room overlooking Albert Street, are as predicted. Further monitoring will be carried out at these locations when piling, jet grouting and rock breaking begin at Customs Deck 3.

7.2

VIBRATION MONITORING

Vibration monitoring will be carried out at 22 Customs Street, for 2 weeks initially, when Project works commence on Customs Deck 3. Depending on the levels of vibration measured it may be necessary to extend the monitoring period to cover the full duration of the Customs Deck 3 works (approximately 2 months). A location at basement or ground floor level close to the Customs Street intersection will be used but the exact location of the monitoring equipment within the building is yet to be finalised as the tenant will soon be carrying out a refit of the building. Discussions with the building owner are ongoing and the final location will be influenced by the timing of the monitoring. They have asked to be contacted a month before the monitoring takes place to finalise a location.

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 15

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: ADVANCED UTILITIES WORKS Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001263 Revision: 03

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

This page intentionally left blank.

DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Site Specific Construction Noise Management Plan

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001263

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/03/16

Final for Issue

C. Drewery

C Hind

3/06/16

Final for Issue

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities .......................................................................................................................... 10

Predicted Noise and vibration levels................................................................................. 11 4.1

Noise

4.2

Vibration

Mitigation ......................................................................................................................... 14 5.1

Noise

5.2

Vibration

Communication and Consultation..................................................................................... 15

Monitoring ....................................................................................................................... 16

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 17

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration from advanced utilities works within the project designation. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

1.2

SITE PLAN

The locations of the advanced utilities works are shown on Figure 1. Figure 1 Site Plan

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

2 RECEIVERS Receivers where noise levels due to the advanced utility works within the project designation have the potential to exceed project noise or vibration standards are listed below, along with building use. Table 1 Affected receivers

Historic / vibration sensitive

Minimum Distance to Works, m

Noise Criteria, dB dB LAeq LAFmax

Vibration Criteria, (mm/s)

Address

Building use

38 Wyndham Street

Commercial

3 Albert Street

Commercial

63 Albert Street

Commercial

65-71 Albert Street

This building has its own SSCNVMP so is not included in this plan

46-50 Albert Steet

Commercial

12-26 Swanson Street

Commercial

61 Albert Street

Mixed Use

75*

90*

35 Albert Street

Construction Site

37-39 Albert Street

Construction Site

5-7 Albert Street

Commercial

57 Albert Street

Commercial

41 Albert Street

This building has its own SSCNVMP so is not included in this plan

58 Albert Street

Commercial

52-56 Albert Street

Commercial

51 Albert Street

Commercial

15 Albert Street

Vacant

9 Albert Street

Mixed Use

75*

90*

55 Albert Street

Commercial

13 Albert Street

Vacant

22 Customs Street

Commercial

17 Albert Street

Commercial

8 Albert Street

Mixed Use

75*

90*

23-29 Albert Street

Commercial

22-26 Albert Street

This building has its own SSCNVMP so is not included in this plan

11-27 Customs Street

Commercial but about to be demolished

70-74 Albert Street

Mixed Use

75*

90*

Bluestone Wall

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

34-36 Wyndham Street

Commercial

81 Albert Street

Mixed Use

75*

90*

33 Wyndham Street

Commercial

26 Wyndham Street

Commercial

29 Customs Street

Commercial

76 Albert Street

Residential

75*

90*

4 Kingston Street

Commercial

9 Wolfe Street

Commercial

18 Federal Street

Residential

75*

90*

Bluestone Wall

In addition to the buildings along Albert Street there is a wall with heritage status, refered to as the Bluestone Wall. The wall is located towards the southern end of the Project area opposite the District Court. The vibration criteria of 3mm/s from DIN 4550:3 is applicable to heritage structures. DIN 4150:3 states that â€œExperience has shown that if these values are complied with, damage that reduces the serviceability of the building will not occurâ€?. It also states that exceeding the values does not necessarily lead to damage. Table 2 details categories of damage and a description of the damage that could be expected in that category. Providing the vibration criteria of 3mm/s is achieved at the Bluestone Wall the Category of Damage will be 2 or below. Table 2 Categories of Damage

Category of Damage

Normal Degree of Severity

Description of Typical Damage

Negligible

Hairline cracks

Very Slight

Fine cracks easily treated during normal redecoration. Perhaps isolated slight fracture in building. Cracks in exterior visible upon close inspection.

Slight

Cracks easily filled. Redecoration probably required. Several slight fractures inside building. Exterior cracks visible, some repainting may be required for weathertightness. Doors and windows may stick slightly.

Moderate

Cracks may require cutting out and patching. Recurrent cracks can be masked by suitable

General Category Aesthetic Damage

Serviceability Damage Page 9

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

linings. Brick pointing and possible replacement of a small amount of exterior brickwork may be required. Doors and windows sticking.

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours or operation, are shown in Table 3 below. Table 3 Construction activities

Construction Activity

Area of works

Activity Start Date

Duration

Advanced Utilities Relocation Works

Customs St Intersection Stormwater Works

Early May

50 days

Swanson St West Stormwater Works

Early August

12 days

Swanson St East Early Stormwater Works

Early August

20 days

Swanson St East Stormwater Works ANZ Connection

Early September

15 days

Wyndham St Stormwater Works

Early May

25 days

Kingston-Wyndham St Stormwater Works

Early May

35 days

Combined Service Trench â€“ Western Footpath including crossings

Early May

60 days

Wyndham St Chorus Works

Early June

15 days

Vector Electricity from Swanson Street West across Albert Street down Swanson Street East

Early June

20 days

Hours

7am â€“ 7pm Mon - Sat

Details of construction equipment that is likely to be used for each of the above activities and the associated noise levels can be found in Appendix C of the CNV DWP. Details of the equipment that is expected to generate high levels of vibration can be found in Appendix B of the CNV DWP. The equipment levels detailed in Appendices B and C of the CNV DWP are placeholders. All equipment will be measured operating independently and then actual equipment noise/ vibration levels and model numbers will be recorded and updated within the table. .

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of each receiver are shown below in Table 4. These levels correspond to the construction equipment being located at its nearest position to the receiver and assume there is no physical mitigation between the noise source and the façade of the building. Table 4 Predicted noise levels (no mitigation)

Address

Predicted worst case noise levels (no mitigation), dB LAeq

Project Noise Standards exceedance, dB

Combined Services Trench 63 Albert Street

102

61 Albert Street

100

57 Albert Street

100

38 Wyndham Street

12-26 Swanson Street

34-36 Wyndham Street

33 Wyndham Street

70-74 Albert Street

26 Wyndham Street

18 Federal Street

Customs Street Stormwater – Southwest 3 Albert Street

22 Customs Street

5 Albert Street

29 Customs Street

8 Albert Street

Customs Street Stormwater - Northeast 29 Customs Street

Swanson Street Stormwater - East 12-26 Swanson Street

Swanson Street Stormwater - West 23-29 Albert Street

12-26 Swanson Street

Kingston Street to Wyndham Street Stormwater 63 Albert Street

17 Page 11

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

81 Albert Street

70-74 Albert Street

38 Wyndham Street

76 Albert Street

4 Kingston Street

Wyndham Street Temporary Diversion 63 Albert Street

70-74 Albert Street

38 Wyndham Street

61 Albert Street

33 Wyndham Street

Wyndham Street Permanent Works 61 Albert Street

63 Albert Street

33 Wyndham Street

57 Albert Street

38 Wyndham Street

Chorus Wyndham Street 38 Wyndham Street

100

63 Albert Street

34-36 Wyndham Street

61 Albert Street

26 Wyndham Street

70-74 Albert Street

33 Wyndham Street

46-50 Albert Street

Customs Street Watermain 22 Customs Street

3 Albert Street

5 Albert Street

4.2

VIBRATION

Buildings which are classed as high or medium risk of damage as a result of the Advanced Utilities works are shown in Table 5. A receiver is classified as ‘high risk’ if it is located within the emission radius for an activity, and ‘medium risk’ if it is close to the contour with possible intermittent exceedance.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

Table 5 Vibration risk class

Distance to works (m)

Address

Building type

Risk class

38 Wyndham Street

Commercial

High

3 Albert Street

Commercial

High

63 Albert Street

Commercial

High

12-26 Swanson Street

Commercial

High

61 Albert Street

Historic / Vibration Sensitive

High

57 Albert Street

Historic / Vibration Sensitive

High

58 Albert Street

Commercial

High

52-56 Albert Street

Historic / Vibration Sensitive

High

51 Albert Street

Historic / Vibration Sensitive

High

55 Albert Street

Historic / Vibration Sensitive

High

22 Customs Street

Historic / Vibration Sensitive

High

70-74 Albert Street

Residential

High

0 Bluestone Wall

Historic / Vibration Sensitive

High

34-36 Wyndham Street

Historic / Vibration Sensitive

High

It can be seen from the table above that a number of the buildings may experience vibration that exceeds the building damage vibration limits during use of the excavator mounted concrete breaker. Vibration monitoring will be carried out when works begin on site to determine actual equipment vibration levels and the attenuation provided by the local ground conditions.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

5 MITIGATION 5.1

NOISE

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Concrete cutting

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when:  

Cutting within 300mm of a kerb or canopy structure Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

When use of a mobile acoustic enclosure is not practicable works will be planned so that saw cutting directly in front of a receiver / receivers is completed within a total of two working days. The building owner(s) will be contacted prior to this occurring to see if the works can be scheduled for a time that least impacts them. Vacuum Excavation

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be least 1.8m high and have a mass equal to or greater than 10 kg/m2. Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass, such as Flex Shield providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. 5.1.1

Internal noise levels

With the above mitigation and management measures implemented and barriers installed, the noise levels at the most exposed façade of a number of properties will still exceed the noise criteria by more than 5 dB during some Project construction activities. Building mitigation has been recommended for 22 Customs Street to achieve acceptable internal noise levels over the duration of the Project. The recommendations can be found in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENV-CON-PLN-001189). The advanced utilities relocation works are located so close to the receviers that internal noise levels will be high, even in 22 Customs Street where building modifications are proposed. Cutting and breaking, where required, are the noisiest activities but an enclosure is unlikely to be practicable in the majority of locations due to space restrictions. The works are of a relatively short duration and cutting and breaking will only take place for a fraction of the time. It will be necessary to consult further with each affected receiver before works begin outside of their building and schedule the noisy activities, where possible, for a time that least impacts them. Page 14

Connectus Project #: 2665 Client: Auckland Transport

5.2

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

VIBRATION

In addition to the general noise and vibration control measures outlined in Section 7 of the Project CNV DWP the following specific vibration mitigation measures (Table 7) should be implemented if the initial on site vibration monitoring demonstrates that the building damage vibration limits will be exceeded: Table 7 Specific Vibration Mitigation Measures

Equipment/process

Vibration control measures

Excavator mounted rock breaker

Use lower vibration generating equipment such as a hand held jack hammer

Roller compactor (17t)

Use a smaller compactor, less than 10t

Excavator mounted rock breakers must not be used within 16m of the Bluestone Wall unless on site measurements demonstrate vibration levels are lower than predicted from this item of plant. Hand held jack hammers or alternative low vibration generating equipment should be used within this distance. Similarly, small compactors, less than 10t should be used when within 15m of the Bluestone Wall.

6 COMMUNICATION AND CONSULTATION Section 9.1 of the Project CNV DWP details the communication procedures in relation to construction noise and vibration effects.. The complaints process is detailed in Section 9.2 of the CNV DWP. Consultation with the stakeholders identified in this SSCNVMP took place from mid-November to midDecember 2015. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Proposed mitigation and management measures



Construction of their buildings



Operational hours of their businesses



Operating environment that is required by the businesses

Further details of the meetings and comments made by the stakeholders are provided in Appendix D of the CNV DWP.

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out when concrete breaking and begins within 20m of the building at the locations detailed in Table 8. The monitoring will be carried out at first floor level unless a location at a higher level is specified. Table 8 Noise Monitoring Locations

Receiver

Monitoring Location

3 Albert Street

1m from façade of building

22 Customs Street

1m from façade of building In the most exposed retail area In the Level 2 meeting/ training room overlooking Albert Street

63 Albert Street

1m from façade of building

61 Albert Street

1m from façade of building

70-74 Albert Street

1m from façade of building

12-26 Swanson Street

1m from façade of building

In addition to the above site-specific monitoring locations, overall project noise levels will be monitored on a monthly basis at six standard monitoring locations identified in the CNV DWP.

7.2

VIBRATION MONITORING

Vibration monitoring will be carried out when works begin on site to determine actual equipment vibration levels and the attenuation provided by the local ground conditions. If the initial vibration monitoring demonstrates that the emission radius for the excavator mounted concrete breaker are similar to those detailed in Section 5.2 of the CNV DWP then the monitoring as detailed below will be carried out. If the monitoring demonstrates that vibration levels are significantly lower then less properties may require monitoring, if they are higher then more properties may require monitoring. Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 16m of the building: 

22 Customs Street



55 Albert Street



61 Albert Street



57 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 10m of the building: 

70-74 Albert Street

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Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 rd Revision: 03, Date: 3 June 2016

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 7m of the building: 

3 Albert Street



38 Wyndham Street



58 Albert Street



63 Albert Street

In addition to the above site-specific vibration monitoring locations, overall project vibration levels will be monitored on a monthly basis at six standard monitoring locations identified in the CNV DWP.

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 17

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: ALBERT STREET PILING Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001189 Revision: 03

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: ALBERT STREET PILING

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001189

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/3/16

Final for Issue

C. Drewery

C Hind

3/6/16

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................9

Predicted Noise and vibration levels................................................................................. 10 4.1

Noise

4.2

Vibration

Mitigation ......................................................................................................................... 12 5.1

Noise

5.2

Vibration

Communication and Consultation..................................................................................... 21

Monitoring ....................................................................................................................... 22

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 23

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

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Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration effects from the Albert Street Piling component of the Project. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

1.2

SITE PLAN

Figure 1 shows the location of the piling works. Figure 1 Site Plan

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

2 RECEIVERS Receivers where noise levels due to the Albert Street piling works have the potential to exceed project noise or vibration standards are listed below, along with building use. Table 1 Affected receivers

Historic / vibration sensitive

Minimum Distance to Works, m

Noise Criteria, dB dB LAeq LAFmax

Vibration Criteria, (mm/s)

Address

Building use

15 Albert Street

Vacant

13 Albert Street

Vacant

9 Albert Street

Mixed Use (commercial / residential)

75*

90*

5 Albert Street

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

22 Customs Street

Commercial

51 Albert Street

Commercial

41 Albert Street 23-29 Albert Street

This building has its own SSCNVMP so is not included in this plan 75 20 Commercial N 6

38 Wyndham Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

61 Albert Street

Mixed Use (commercial / residential)

75*

90*

57 Albert Street

Commercial

75*

90*

55 Albert Street

Commercial

37-39 Albert Street

Construction Site

35 Albert Street

Construction Site

52-56 Albert Street

Commercial

8 Albert Street

Mixed Use (commercial / residential)

75*

90*

70-74 Albert Street

Mixed Use (commercial / residential)

75*

90*

46-50 Albert Street

Commercial

12-26 Swanson Street

Commercial

22-26 Albert Street

This building has its own SSCNVMP so is not included in this plan Page 8

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

65-71 Albert Street

This building has its own SSCNVMP so is not included in this plan

34-36 Wyndham Street

Commercial

29 Customs Street

Commercial

33 Wyndham Street

Commercial

76 Albert Street

Residential

75*

90*

26 Wyndham Street

Commercial

6 Wolfe Street

Vacant

9 Wolfe Street

Commercial

18 Federal Street

Residential

75*

90*

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours or operation, are shown in Table 2 below. Table 2 Construction activities

Construction Activity

Area of works

Activity Start Date

Activity End Date

Hours

Piling

Install CFA piles

Customs Deck 1 through to Wolfe Street - West side

20 Sep2016

05 Oct 2016

South East Quarter

26 Oct 2016

12 Dec 2016

7am â€“ 7pm

South West Quarter

22 Dec 2016

07 Mar 2017

Mon - Sat

North East Quarter

10 Mar 2017

06 Apr 2017

Wolfe Street - West side

24 Apr 2017

26 Apr 2017

Pile Caps and Traffic Decks

Build pile cap & deck

Customs Deck 1 through to Wolfe Street - West side

27 Sep 2016

18 Oct 2016

South East Quarter

02 Nov 2016

23 Dec 2016

South West Quarter

12 Jan 2017

03 Mar 2017

7am â€“ 7pm Mon - Sat

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Connectus Project #: 2665 Client: Auckland Transport

Construction Activity

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

Area of works

Activity Start Date

Activity End Date

Build cap only West side ANZ to Wolfe Street

27 Feb 2017

15 Mar 2017

North East Quarter

17 Mar 2017

24 Apr 2017

Build deck ANZ to Wolfe Street

13 Apr 2017

08 May 2017

Hours

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of each receiver are shown below in Table 3. These levels correspond to the construction equipment being located at its nearest position to the receiver and assume there is no physical mitigation between the noise source and the faรงade of the building. Table 3 Predicted noise levels (no mitigation)

Address 15 Albert Street 13 Albert Street 9 Albert Street 5 Albert Street 3 Albert Street 17 Albert Street 22 Customs Street 51 Albert Street 41-45 Albert Street 23-29 Albert Street 38 Wyndham Street 58 Albert Street 63 Albert Street 61 Albert Street 57 Albert Street 55 Albert Street 37-39 Albert Street

Predicted worst case noise levels (no mitigation), dB LAeq 96 96 96 96 96 95 95 94 94 94 93 93 93 93 93 93 93

Project Noise Standards exceedance, dB 21 21 21 21 21 20 20 19 19 19 18 18 18 18 18 18 18

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

35 Albert Street 52-56 Albert Street 8 Albert Street 70-74 Albert Street 46-50 Albert Street 12-26 Swanson Street 34-36 Wyndham Street 29 Customs Street 33 Wyndham Street 76 Albert Street 26 Wyndham Street 6 Wolfe Street 9 Wolfe Street 18 Federal Street

4.2

93 92 92 91 91 91 84 82 81 79 79 78 78 77

18 17 17 16 16 16 9 7 6 4 4 3 3 2

VIBRATION

Buildings which are classed as high or medium risk of damage as a result of the Albert Street Piling works are shown in Table 4. A receiver is classified as ‘high risk’ if it is located within the emission radius for an activity, and ‘medium risk’ if it is close to the contour with possible intermittent exceedance. Table 4 Vibration risk class

Address

Building type

Distance to works (m)

Risk class

Installation of CFA piles 22 Customs Street

Historic / vibration sensitive

Medium

5 Albert Street

Historic / vibration sensitive

Medium

9 Albert Street

Historic / vibration sensitive

Medium

13 Albert Street

Historic / vibration sensitive

Medium

15 Albert Street

Historic / vibration sensitive

Medium

17 Albert Street

Historic / vibration sensitive

Medium

Concrete Breaking - Utilities Location and Installation of Pile Caps 22 Customs Street

Historic / vibration sensitive

High

5 Albert Street

Historic / vibration sensitive

High

9 Albert Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

High

17 Albert Street

Historic / vibration sensitive

High

23-29 Albert Street

Commercial

High

55 Albert Street

Historic / vibration sensitive

High

61 Albert Street

Historic / vibration sensitive

High

57 Albert Street

Historic / vibration sensitive

High

38 Wyndham Street

Commercial

High

58 Albert Street

Commercial

High

63 Albert Street

Commercial

High Page 11

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

8 Albert Street

Residential

High

70-74 Albert Street

Residential

High

It can be seen from the table above that a number of the buildings may experience vibration that exceeds the building damage vibration limits when a concrete breaker is used during utilities location and installation of pile caps. Vibration monitoring will be carried out when works begin on site to determine actual equipment vibration levels and the attenuation provided by the local ground conditions.

5 MITIGATION 5.1

NOISE

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Crane

Use straps rather than chains unless a risk assessment deems the use of straps unsafe.

Concrete cutting

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when:  

Cutting within 300mm of a kerb or canopy structure Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

Construction Vehicles

Tonal reversing alarms will not be used. Broadband alarms will be used instead.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

Figure 2 Noise barriers

5.1.1

Internal noise levels

With the above mitigation and management measures implemented and barriers installed, the noise levels at the most exposed faรงade of a number of properties will still exceed the noise criteria by more than 5 dB during some Project construction activities. These properties are detailed in Table 6 along with any further mitigation necessary to achieve acceptable internal noise levels. Table 6 Building Mitigation Measures

Address 15 Albert Street 13 Albert Street 9 Albert Street

Comments Building currently vacant Building currently vacant The bottom floors of the building are occupied by Food Alley. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. The floors of the building that are occupied by food alley are mechanically ventilated. The glass doors are automated but they open frequently and are sometimes left permanently open during the summer months. The doors are the weak point when considering noise ingress. There is a reasonable amount of background noise from cooking and other operations within the space. Traffic noise is barely audible over background noise. Construction noise is unlikely to be an issue for the majority of the piling works as it will be masked by mechanical services noise and general operational noise. When piling or utilities location works are taking place immediately outside of the building construction noise levels will be elevated and will be audible above background. Utilities location works will be directly outside of the building for approximately 3 days on each side of the road. Piling will be taking place directly outside of the building for approximately 3 days on each side of the road. Further consultation will take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled

Recommended Building Mitigation None None

None

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

outside of the lunch time period when Food Alley is at its busiest.

5 Albert Street (NZ Gifts)

3 Albert Street

17 Albert Street

There are 16 residential apartments on floors 6 and 7 which are all naturally ventilated. Worst case noise levels at these floors are predicted exceed the noise criteria by less than 5 dB. As this exceedance will be for a short duration façade sound insulation improvements are not considered necessary. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. The building is mechanically ventilated. They have automatic doors which are not kept open. Background music plays at a low volume. Operational hours are 9.30am to 9.30pm. Construction noise is unlikely to be an issue for the majority of the piling works as it will be masked by the background music. When piling or utilities location works are taking place immediately outside of the building construction noise levels will be elevated and will be audible above background. Further consultation will take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled to avoid their busiest times. The bakery/ cafe on the ground floor is the most exposed area of the building. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. However, the doors are kept wide open all day so they are already exposed to high levels of traffic noise, particularly heavy vehicles pulling away from the traffic lights. The radio plays loudly so it can be heard over the traffic noise. To reduce construction noise levels further it would be necessary to fit acoustic seals around the door and to keep it shut during construction activities, except to allow for the timely entry and egress of customers. The business owner indicated that he is not concerned about construction noise and is likely to keep the doors open as usual. The tower is occupied by offices. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and loss of concentration. This part of the building has a glass façade and all offices are mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. AS/NZS 2107:2000 “Acoustics – Recommended design sound levels and reverberation times for building interiors” recommends a maximum noise level of 45 dB LAeq for general office areas. Noise levels in the tower section of the building will remain below 45 dB LAeq for the majority of the works. Façade sound insulation improvements are therefore not considered necessary at this receiver. The convenience store on the ground floor is the most exposed area of the building. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and

None

For all windows on the Albert Street façade (up to the 7th Floor) and those on the North and Page 14

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

patrons choosing to shop elsewhere. The doors are kept wide open all day during the summer and they are already exposed to high levels of traffic noise. The business owner indicated that he is not concerned about construction noise and is likely to keep the doors open as usual. The rest of this building contains mostly offices with a few residential apartments. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The whole building is mechanically ventilated during business hours. The windows on all levels are single glazed in aluminium frame. Seals are in a variable condition, some are slightly perished. The tenants have commented that they currently experience rattling windows due to nearby construction works. Noise measurements were carried out in rooms located on the Albert Street façade to establish the sound reduction performance of the façade with windows closed. A reduction of 25 to 30 dB(A) was measured. When piling or utilities location works are taking place immediately outside of the building construction noise levels will be elevated and will be clearly audible above background. The internal noise level may reach 65 dB LAeq on the first floor and 60 dB LAeq on the second floor during piling if the window seals are deteriorated in these areas. Utilities location works will be directly outside of the building for approximately 5 days on each side of the road. Piling will be taking place directly outside of the building for approximately 5 days on each side of the road. Further consultation will take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled outside of the most sensitive times.

22 Customs Street

There is a language school at first floor level which requires low background noise levels to operate. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and students, loss of concentration and reduction in speech intelligibility. AS/NZS 2107:2000 “Acoustics – Recommended design sound levels and reverberation times for building interiors” recommends a sound level of 35 to 45 dB LAeq for teaching spaces. The building houses a number of retail outlets. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. It is a masonry building with single glazed timber sash windows. All areas are mechanically ventilated. Music is played in the retail areas masking any external noise ingress. Construction noise is unlikely to be an issue in the retail areas as it will be masked by the background music and general operational noise. Traffic noise was clearly audible in the meeting room overlooking Albert Street. The window in this room does not seal adequately when shut and noise break in

South façades that are within 10m of the Albert Street façade (up to the 7th Floor) the window seals should be checked and replaced where perished. Secondary glazing is recommended for the following areas:  The classrooms of the 1st Floor language school that are located on the Albert Street façade  The classrooms of st the 1 Floor language school that are located on the North and South façades within 10m of the Albert Street façade Secondary glazing will be designed to achieve an internal piling noise level of less than 45 dB LAeq within teaching spaces.

Secondary glazing is recommended for the following areas:  The ground floor office overlooking Albert Street  The level 2 meeting/ training room overlooking Albert Street  The level 3 VIP lounge overlooking Customs Street Page 15

Connectus Project #: 2665 Client: Auckland Transport

51 Albert Street 23-29 Albert Street

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

around the window frame was noticeable. Building soon to be demolished This is the ANZ building. It is occupied by a number of businesses including Chapman Tripp, Vero and ANZ. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration productivity and reduction in speech intelligibility. ANZ occupy the lower floors of the building that will be most affected by noise. The building has a glazed façade and it is mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. AS/NZS 2107:2000 “Acoustics – Recommended design sound levels and reverberation times for building interiors” recommends a maximum noise level of 45 dB LAeq for general office areas. Noise levels in all office areas of the building are predicted to remain at or below 45 dB LAeq for the full duration of the works. The most affected area of the building will be the ground floor atrium that houses the reception area and café. The atrium is extremely reverberant due to its size and the reflective nature of the surface finishes. Once construction noise gets into this space it will build up. The amount of noise in the space is largely dependent on the how much noise breaks in through the revolving door. On 4th March 2016 noise measurements were taken simultaneously on both sides of the revolving doors. Noise break-in through the doors was found to be less than predicted but levels could still reach 65 dB LAeq during the noisiest works immediately outside of the building. Both ANZ and the café owner are willing to accept noise levels of up to 65 dB LAeq for short durations providing that they are well informed of the works.

38 Wyndham Street

Further consultation will also take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled outside of the most sensitive times. This building is occupied by the Hollywood Bakery at ground floor level and offices above. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. The operating hours of the bakery are 6.30am to 4.30pm. The front doors are permanently open onto Wyndham Street so they are already exposed to high levels of traffic noise, particularly heavy vehicles pulling away from the traffic lights. They play background noise music at a low volume. The manager indicated that she is not too concerned about construction noise and is likely to keep the doors open as usual.

None

Connectus Project #: 2665 Client: Auckland Transport

46 to 58 Albert Street 63 Albert Street

61 Albert Street

57 Albert Street 37-39 Albert Street 35 Albert Street 8 Albert Street Sebel Hotel

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

noise levels on these three floors will likely be audible above background. Utilities location works will be directly outside of the building for approximately 10 days. Piling will be taking place directly outside of the building for approximately 12 days. Buildings soon to be demolished. This building is occupied by AMI insurance at ground floor level and a number of other companies in the offices above. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The building has a glazed façade and it is mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. When piling is taking place directly outside of the building internal noise levels are predicted to reach 50 dB LAeq in offices overlooking Albert Street on the th ground to the 5 floor and then reduce to 45 dB LAeq on the remaining floors of the building. This building is occupied by the Shakespeare Hotel and Brewery. There is a bar at ground level which operates from 8am to 4am, a restaurant at first floor level and hotel rooms on the second floor. Loud music is played in the bar area. The owner of this business is not concerned about noise and vibration from the works. Their busiest times are in the evening and through the night when there will be no construction activities taking place. Carpark Construction site Construction site This building contains the Sebel Hotel. There is an office space and café on the 1st floor, a swimming pool on the 5th floor and floors 5 to 29 are hotel rooms. There is a conference room on level 5 but it does not overlook Albert Street. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and guests, loss of concentration, reduction in speech intelligibility and annoyance of café patrons who may then choose to eat elsewhere. The reception area has a glass door leading out on to Albert Street. The door has a 1-2cm gap around the perimeter. Ventilation noise in the reception area is quite loud and background music is played. Traffic noise is barely audible. This area of the building will get the most benefit from the noise barrier but the noise level at the façade is still predicted to be 80 dB LAeq. During the four days of piling directly outside of the building noise level in the reception area are predicted to be 55 dB LAeq. The reception area is going to be exposed to reasonably high noise levels for the duration of the Project. The doors are the weak point in the façade. It is recommended that the gaps around the doors are reduced and acoustic seals fitted.

None

None None None It is recommended that the gaps around the main doors are reduced and acoustic seals fitted. It is recommended that the gaps around the balcony doors in the café are reduced and acoustic seals fitted. These doors should remain shut during construction works immediately outside of the building.

The hotel rooms are mechanically ventilated with sliding doors leading out to the balconies overlooking Albert Street. When the balcony doors are closed the rooms Page 17

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

are quiet with very little traffic noise break-in. Only the rooms overlooking Albert Street on levels 5 and 6 will experience noise levels at the façade that exceed the noise criteria by more than 5 dB during piling activities on the east side of Albert Street. With a predicted façade noise reduction of 30 dB Rw the noise levels in these rooms could reach 55 dB LAeq when piling activities are taking place directly outside of the building. The duration of the piling activities that will affect these rooms is 4 days. The pool area has a glass door with no seals opening onto the balcony overlooking Albert Street. Traffic noise levels are masked by mechanical services noise and noise from patrons using the pool. Noise levels due to piling may be audible above the background noise but will not be at a level that interferes with the patron’s use of the pool. The café on the first floor has doors opening onto the balcony overlooking Albert Street where there is a seating area. There is a 1-2cm gap around the perimeter of the doors when closed and the doors are sometimes left open depending on the weather. Music is played reasonably loudly and masks the traffic noise. For four days whilst piling is directly outside of the building construction noise will be audible inside the café even with the music playing. It is recommended that the gaps around the balcony doors in the café are reduced and acoustic seals fitted. Providing that the balcony doors are not left open noise levels should not impact on the cafes operations. Patrons that use the balcony seating area during this four day period will experience noise levels in the region of 85 dB LAeq. Further consultation will take place with the café owner before works begin outside of the building and where possible noisy activities will be scheduled to avoid their busiest times. The office area is on the first floor overlooking Albert Street. The façade is glazed with no window openings. Noise levels in the office are predicted to reach 55 dB LAeq during piling directly outside of the building. 8 Albert Street City Med

The City Med operating hours 8am to 5.30pm Monday to Friday. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patients, loss of concentration and reduction in speech intelligibility making consultations difficult. To get to the reception area you currently go through the front doors then through another set of doors. However, they are renovating this year and the reception area will be moved closer to the Albert Street façade and will be accessed through the front doors only. The front doors are glass sliding doors with a large gap at the bottom and no seals. The noise impact of piling activities on the reception/ waiting area will depend upon the timing of their renovation works. With the reception/ waiting area in its current location there is unlikely to be any increase in internal noise levels when piling works are being

None

Page 18

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

carried out. However, if it moves closer to the Albert Street façade construction noise may be an issue. Further advice cannot be given on this area until the exact details of the renovation works are known. There are two operating theatres located at the back of the building near the car park ramp, furthest from Albert Street. Minor operations are conducted here under local anaesthetic. The radiology area is on the Mills Lane façade in the corner furthest from Albert Street. There is unlikely to be any increase in noise levels in these areas. ECG and audiometry are located within the building away from the façades. These are the activities that are most sensitive to noise but there is unlikely to be any increase in noise levels in these areas due to piling works. The doctor’s consultation rooms run along the Mills Lane façade of the building. The façade is fully glazed and all rooms are mechanically ventilated. Noise levels due to piling are predicted to meet the noise criteria along this area of the façade.

70-74 Albert Street

12-26 Swanson Street

The pharmacy is located at the front of the building and is the area that will be most affected by noise from piling activities. Internal noise levels are predicted to reach 55 dB LAeq during piling directly outside of the building on the east side of Albert Street. Piling in this location is expected to last for three days. This building is a hotel. It is mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include annoying and disturbing staff or guests. The front doors leading into the reception are good and reasonably loud background music is playing so traffic noise is not audible. The rooms have sliding doors opening onto balconies and windows are single glazed laminate. The piling works do not extend to the area in front of this building. They will only be exposed to noise from piling when it is at the southern tip of the site for approximately 5 days. Only three apartments will be affected (those on the first, second and third floor on the northern end of the Albert Street façade). The general manager is not concerned about noise and vibration providing that there is good communication about the timing and nature of activities that he can pass onto the guests. This building is occupied by the NZ Trade Centre. All areas of the building are mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility.

None

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

works. Noise levels at the first floor are predicted to be 80 to 85 dB LAeq during piling works but as this is a car park no further mitigation is required. Worst case noise levels at the ground floor retail/ product display area are predicted to exceed the noise criteria by no more than 5 dB so no further no further mitigation is required. The main tower section of the building is located further down Swanson Street away from the works. Noise levels at the most exposed façade of this section of the building will not exceed the noise criteria by more than 5 dB during the piling works.

Where building modification is recommended the following actions will be undertaken: 

The building owner will be contacted to discuss details of the recommended building mitigation.



If the building owner wishes to proceed with the recommended building mitigation, arrangements will be made to visit the property to inspect the areas of the building where acoustic treatment is proposed and identify any issues that could affect installation of the mitigation. Additional noise measurements will be taken, where necessary, to confirm the acoustic performance requirements of the mitigation.



Any approvals required for the works under the Resource Management Act, Building Act and Historic Place Act will be obtained.



A legal agreement will be prepared for the installation of the acoustic treatment. The agreement will contain an explicit description of the acoustic treatment to be installed. Under the agreement Auckland Transport will take responsibility for commissioning the works (such as airflow and noise from ventilation systems) and for ensuring any required building consent inspections occur. The agreement includes a form to be signed by the property owner following commissioning to acknowledge that the works specified have been completed.



On completion of the mitigation works the property will be reinstated to a similar condition to that existing immediately prior to the works commencing.

Where secondary glazing is recommended the following should be implemented:

5.2



The existing window must be sealed before the secondary window is installed.



The secondary window shall be installed in a separate frame to the primary window, with no direct connections between the two frames.



The reveals between the primary and secondary windows shall be lined with an acoustically absorbent material having at least absorption class C in accordance with ISO 11654:1997.



Opening sections of the secondary window shall be aligned with openings in the primary window.

VIBRATION

Page 20

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

Table 7 Specific Vibration Mitigation Measures

Equipment/process

Vibration control measures

Excavator mounted rock breaker

Use lower vibration generating equipment such as a hand held jack hammer

6 COMMUNICATION AND CONSULTATION Section 9.1 of the Project CNV DWP details the communication procedures in relation to construction noise and vibration effects. The complaints process is detailed in Section 9.2 of the CNV DWP. Consultation with the stakeholders identified in this SSCNVMP took place from mid-November to late December 2015. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Proposed mitigation and management measures



Construction of their buildings



Operational hours of their businesses



Operating environment that is required by the businesses

Further details of the meetings and comments made by the stakeholders are provided in Appendix D of the CNV DWP.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out when concrete breaking begins within 20m of the building and when piling begins within 15m of the building at the locations detailed in Table 8. The monitoring will be carried out at first floor level unless a location at a higher level is specified. Table 8 Noise Monitoring Locations

Receiver

Monitoring Location

9 Albert Street

1m from façade of building

5 Albert Street

1m from façade of building Inside the gift shop

3 Albert Street

1m from façade of building

17 Albert Street

1m from façade of building In a Language School classroom overlooking Albert Street. In one of the offices on Level 2

22 Customs Street

1m from façade of building In the most exposed retail area In the Level 2 meeting/ training room overlooking Albert Street

23-29 Albert Street

1m from façade of building In the ground floor reception/ café area

63 Albert Street

1m from façade of building

61 Albert Street

1m from façade of building

8 Albert Street

1m from façade of building

Sebel Hotel

In the hotel reception In the café In one of the Level 5 rooms overlooking Albert Street

8 Albert Street

1m from façade of building

City Med 70-74 Albert Street

1m from façade of building

12-26 Swanson Street

1m from façade of building

7.2

VIBRATION MONITORING

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001189 rd Revision: 03, Date: 3 June 2016

as detailed below will be carried out. If the monitoring demonstrates that vibration levels are significantly lower then less properties may require monitoring, if they are higher then more properties may require monitoring. Vibration monitoring will be carried out at the following receivers when CFA piling begins within 5m of the building: 

22 Customs Street



5 Albert Street



9 Albert Street



17 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 16m of the building: 

22 Customs Street



5 Albert Street



9 Albert Street



17 Albert Street



55 Albert Street



61 Albert Street



57 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 10m of the building: 

8 Albert Street



70-74 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 7m of the building: 

3 Albert Street



23-29 Albert Street



38 Wyndham Street



58 Albert Street



63 Albert Street

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 23

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: EXCAVATION Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001187 Revision: 03

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: EXCAVATION

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001187

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/03/16

Final

C. Drewery

C Hind

3/06/16

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................9

Predicted Noise and vibration levels................................................................................. 10 4.1

Noise

4.2

Vibration

Mitigation ......................................................................................................................... 15 5.1

Noise

5.2

Vibration

Communication and Consultation..................................................................................... 21

Monitoring ....................................................................................................................... 22

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 23

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

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Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

1 INTRODUCTION

This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration from trench excavation and spoil handling, including shotcrete, strip drain and rock dowel installation. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRLPAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

1.2

SITE PLAN

The excavation area is shown in Figure 1. Excavation in the Customs Street Intersection will be below the traffic decks while the remainder of Albert Street will be an open trench. Figure 1 Site Plan

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

2 RECEIVERS

Receivers where noise levels due to excavation works have the potential to exceed project noise or vibration standards are listed below, along with building use. Table 1 Affected receivers

Historic / vibration sensitive

Minimum Distance to Works, m

Noise Criteria, dB dB LAeq LAFmax

Vibration Criteria, (mm/s)

Address

Building use

9 Albert Street

Mixed Use

75*

90*

5 Albert Street

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

15 Albert Street

Vacant

13 Albert Street

Vacant

22 Customs Street

Commercial

38 Wyndham Street

Commercial

61 Albert Street

Mixed Use

75*

90*

57 Albert Street

Commercial

55 Albert Street

Commercial

51 Albert Street

Commercial

41 Albert Street

This building has its own SSCNVMP so is not included in this plan

23-29 Albert Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

46-50 Albert Street

Commercial

52-56 Albert Street

Commercial

12-26 Swanson Street

Commercial

37-39 Albert Street

Construction Site

70-74 Albert Street

Mixed Use

75*

90*

35 Albert Street

Construction Site

22-26 Albert Street 8 Albert Street 65-71 Albert Street

This building has its own SSCNVMP so is not included in this plan Mixed Use

75*

90*

This building has its own SSCNVMP so is not included in this plan

34-36 Wyndham Street

Commercial

33 Wyndham Street 26 Wyndham Street

Commercial

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

* This is the Monday to Saturday 07:00 to 22:00 noise criteria. The majority of works will be carried out during this period. For residential receivers the noise limit is reduced to 65 dB L Aeq & 80 dB LAFmax on Sundays and Public Holidays between 07:00 to 22:00 and to 60 dB LAeq & 75 dB LAFmax at all other times. Designation Condition 38.4 allows for the Project vibration limits to be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place. Based on the building condition surveys and the initial assessments by the structural engineer the vibration limits will not be reduced.

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours or operation, are shown in Table 2 below. Shotcrete, strip drain and rock dowel installation are contained within the excavation start and end dates for the respective areas and layers shown. Table 2 Construction activities

Construction Activity

Remove existing road surface

Excavation 1st Layer

Excavation 2nd to Bottom

Area of works

Activity Start Date

Activity End Date

Hours

South end to Ch550

23 Mar 2017

28 Mar 2017

Ch550 to Swanson

23 Mar 2017

27 Mar 2017

7am – 7pm

Swanson to Wolfe

26 May 2017

30 May 2017

Mon - Sat

Wolfe to North end

03 Jul 2017

05 Jul 2017

South end to Ch550

29 Mar 2017

04 Apr 2017

Ch550 to Swanson

28 Mar 2017

19 Apr 2017

7am – 7pm

Swanson to Wolfe

31 May 2017

28 Jun 2017

Mon - Sat

Wolfe to North end

06 Jul 2017

02 Aug 2017

South end to Ch550

21 Apr 2017

01 Sep 2017

Ch550 to Swanson

20 Apr 2017

07 Sep 2017

7am – 7pm

Swanson to Wolfe

29 Jun 2017

05 Dec 2017

Mon - Sat

Wolfe to North end

03 Aug 2017

23 Mar 2018

Page 9

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

Address

Predicted worst case noise levels (no mitigation), dB LAeq

Project Noise Standards exceedance, dB

Removal of existing road surface 9 Albert Street

5 Albert Street

3 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

22 Customs Street

38 Wyndham Street

61 Albert Street

57 Albert Street

55 Albert Street

51 Albert Street

23-29 Albert Street

58 Albert Street

63 Albert Street

46-50 Albert Street

52-56 Albert Street

12-26 Swanson Street

37-39 Albert Street

70-74 Albert Street

35 Albert Street

22-26 Albert Street

8 Albert Street

34-36 Wyndham Street

33 Wyndham Street

26 Wyndham Street

1 Page 10

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

Excavation of 1st Layer 9 Albert Street

5 Albert Street

3 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

22 Customs Street

38 Wyndham Street

61 Albert Street

57 Albert Street

55 Albert Street

51 Albert Street

23-29 Albert Street

58 Albert Street

63 Albert Street

46-50 Albert Street

52-56 Albert Street

12-26 Swanson Street

37-39 Albert Street

70-74 Albert Street

35 Albert Street

22-26 Albert Street

8-12 Albert Street

83 Excavation of 2nd layer to bottom

9 Albert Street

5 Albert Street

3 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

22 Customs Street

38 Wyndham Street

61 Albert Street

57 Albert Street

55 Albert Street

51 Albert Street

23-29 Albert Street

58 Albert Street

Page 11

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

63 Albert Street

46-50 Albert Street

52-56 Albert Street

12-26 Swanson Street

37-39 Albert Street

70-74 Albert Street

35 Albert Street

8 Albert Street

Rock fall protection netting 6 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

9 Albert Street

7 Albert Street

3 Albert Street

58 Albert Street

51 Albert Street

38 Wyndham Street

61 Albert Street

52-56 Albert Street

57 Albert Street

55 Albert Street

37-39 Albert Street

23-29 Albert Street

63 Albert Street

46-50 Albert Street

12-26 Swanson Street

35 Albert Street

8 Albert Street

70-74 Albert Street

Shotcrete placement 38 Wyndham Street

63 Albert Street

65-71 Albert Street

Pre-drilling 6 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

12 Page 12

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

9 Albert Street

5 Albert Street

3 Albert Street

58 Albert Street

51 Albert Street

38 Wyndham Street

61 Albert Street

52-56 Albert Street

57 Albert Street

55 Albert Street

37-39 Albert Street

23-29 Albert Street

63 Albert Street

46-50 Albert Street

12-26 Swanson Street

35 Albert Street

8 Albert Street

70-74 Albert Street

34-36 Wyndham Street

Drilling and rock dowel installation 6 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

9 Albert Street

5 Albert Street

3 Albert Street

58 Albert Street

51 Albert Street

38 Wyndham Street

61 Albert Street

52-56 Albert Street

57 Albert Street

55 Albert Street

37-39 Albert Street

23-29 Albert Street

63 Albert Street

46-50 Albert Street

12-26 Swanson Street

35 Albert Street

9 Page 13

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

8 Albert Street

70-74 Albert Street

34-36 Wyndham Street

33 Wyndham Street

4.2

VIBRATION

Buildings which are classed as high or medium risk of damage as a result of rock dowel pre-drilling are shown in Table 4. A receiver is classified as ‘high risk’ if it is located within the emission radius for an activity, and ‘medium risk’ if it is close to the contour with possible intermittent exceedance. Table 4 Vibration risk class

Address

Building type

Distance to works (m)

Risk class

Pre-drilling 6 Albert Street

Historic / vibration sensitive

High

17 Albert Street

Historic / vibration sensitive

High

15 Albert Street

Historic / vibration sensitive

High

13 Albert Street

Historic / vibration sensitive

High

9 Albert Street

Historic / vibration sensitive

High

7 Albert Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

High

58 Albert Street

Commercial

High

51 Albert Street

Historic / vibration sensitive

High

38 Wyndham Street

Commercial

High

61 Albert Street

Historic / vibration sensitive

High

52-56 Albert Street

Historic / vibration sensitive

High

57 Albert Street

Historic / vibration sensitive

High

55 Albert Street

Historic / vibration sensitive

High

41-45 Albert Street

Historic / vibration sensitive

High

23-29 Albert Street

Commercial

High

63 Albert Street

Commercial

High

46-50 Albert Street

Historic / vibration sensitive

High

12-26 Swanson Street

Commercial

Medium

12 Albert Street

Mixed Use

High

70-74 Albert Street

Mixed Use

High

Page 14

Connectus Project #: 2665 Client: Auckland Transport

5 MITIGATION 5.1

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

NOISE

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Crane

Use straps rather than chains unless a risk assessment deems the use of straps unsafe.

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be least 1.8m high and have a mass equal to or greater than 10 kg/m2. Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. Indicative location of noise barriers is shown in green in Figure 2 below. Figure 2 Noise barriers

5.1.1

Internal noise levels

Page 15

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

Table 6 Building Mitigation Measures

Address 15 Albert Street 13 Albert Street 9 Albert Street

Recommended Building Mitigation None None

None

The noisiest activity during the excavation phase will be removal of the road surface which will only take two days outside of this receiver.

5 Albert Street (NZ Gifts)

3 Albert Street

None

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

so it can be heard over the traffic noise. The business owner indicated that he is not concerned about construction noise and is likely to keep the doors open as usual.

17 Albert Street

The tower is occupied by offices. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and loss of concentration. It has a glass façade and all offices are mechanically ventilated. Noise levels in the tower section of the building will remain below 45 dB LAeq during the excavation works. Façade sound insulation improvements are therefore not considered necessary at this receiver. The convenience store on the ground floor is the most exposed area of the building. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. The rest of this building contains mostly offices, a few residential apartments and a language school. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility.

22 Customs Street

51 Albert Street 23-29 Albert Street

38 Wyndham Street

Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). With this mitigation implemented noise levels in all areas of the building will be acceptable and will not impact business operations or disturb residents. The building houses a number of retail outlets. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). With this mitigation implemented noise levels in all areas of the building will be acceptable and will not impact business operations. Building soon to be demolished None This is the ANZ building. It is occupied by a number of businesses including Chapman Tripp, Vero and ANZ. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration productivity and reduction in speech intelligibility. ANZ occupy the lower floors of the building that will be most affected by noise. The building has a glazed façade and it is mechanically ventilated. Noise levels in all office areas of the building are predicted to remain at or below 45 dB LAeq for the full duration of the works. None The most affected area of the building will be the ground floor atrium that houses the reception area and café. Both ANZ and the café owner are willing to accept elevated noise levels for short durations providing that they are well informed of the works. Further consultation will also take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled outside of the most sensitive times. This building is occupied by the Hollywood Bakery at ground floor level and offices above. Specific effects on this receiver that could result from exceedances of the

None

Page 17

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. The operating hours of the bakery are 6.30am to 4.30pm. The front doors are permanently open onto Wyndham Street so they are already exposed to high levels of traffic noise, particularly heavy vehicles pulling away from the traffic lights. They play background noise music at a low volume. The manager indicated that she is not too concerned about construction noise and is likely to keep the doors open as usual.

46 to 58 Albert Street 63 Albert Street

61 Albert Street

57 Albert Street 37-39 Albert Street 35 Albert Street 8 Albert Street Sebel Hotel

Despite numerous attempts we were unable to gain access to the main part of the building above the bakery. It is assumed that the building contains offices and is mechanically ventilated throughout. The first three floors above the bakery will be most affected by construction noise. When road surface removal works are taking place immediately outside of the building construction noise levels on these three floors will likely be audible above background. Road surface removal will be directly outside of the building for approximately two days. Buildings soon to be demolished. This building is occupied by AMI insurance at ground floor level and a number of other companies in the offices above. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The building has a glazed façade and it is mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. When road surface removal is taking place directly outside of the building internal noise levels are predicted to reach 50 dB LAeq in offices overlooking Albert Street on the ground to the 5th floor and then reduce to 45 dB LAeq on the remaining floors of the building. For all other excavation activities the internal noise levels will be further reduced. This building is occupied by the Shakespeare Hotel and Brewery. There is a bar at ground level which operates from 8am to 4am, a restaurant at first floor level and hotel rooms on the second floor. Loud music is played in the bar area. The owner of this business is not concerned about noise and vibration from the works. Their busiest times are in the evening and through the night when there will be no construction activities taking place. Carpark Construction site

None

None None

Construction site None This building contains the Sebel Hotel. There is an office space and café on the 1st th floor, a swimming pool on the 5 floor and floors 5 to 29 are hotel rooms. There is a conference room on level 5 but it does not overlook Albert Street. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and guests, loss of concentration, reduction in speech intelligibility and annoyance of café patrons who may then choose to eat elsewhere. During the two days of road surface removal directly outside of the building noise level in the reception area are predicted to be 55 dB LAeq. As the works get deeper into the trench the noise level at the façade of the building will reduce and internal Page 18

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

noise levels will reduce accordingly. Only the hotel rooms overlooking Albert Street on levels 5 and 6 will experience noise levels at the façade that exceed the noise criteria by more than 5 dB during removal of the road surface in front of the building. With a predicted façade noise reduction of 30 dB Rw the noise levels in these rooms could reach 55 dB LAeq when the road surface is being removed directly outside of the building. The duration of the road surface removal works that will affect these rooms is two days. For two days whilst road surface removal works are directly outside of the building construction noise will be audible inside the café even with the music playing. It is recommended that the gaps around the balcony doors in the café are reduced and acoustic seals fitted. Providing that the balcony doors are not left open noise levels should not impact on the cafes operations. Patrons that use the balcony seating area during this two day period will experience noise levels in the region of 85 dB LAeq. Further consultation will take place with the café owner before works begin outside of the building and where possible noisy activities will be scheduled to avoid their busiest times. As the works get deeper into the trench the noise level at the façade of the building will reduce and internal noise levels will reduce accordingly. Noise levels in the office are predicted to reach 55 dB LAeq during road surface removal directly outside of the building. As the works get deeper into the trench the noise level will reduce. Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). 8 Albert Street City Med

The City Med operating hours 8am to 5.30pm Monday to Friday. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patients, loss of concentration and reduction in speech intelligibility making consultations difficult. With the reception/ waiting area in its current location there is unlikely to be any increase in internal noise levels when excavation works are being carried out. However, if it moves closer to the Albert Street façade during renovation of the space, construction noise may be an issue. Further advice cannot be given on this area until the exact details of the renovation works are known. None There is unlikely to be any increase in noise levels in the radiology area, operating theatres, ECG and audiometry during excavation works. Noise levels due to excavation activities are predicted to meet the noise criteria along the area of the Mills Lane façade where the doctors’ consultation rooms are located.

70-74 Albert Street

Internal noise levels are predicted to reach 55 dB LAeq in the pharmacy during road surface removal directly outside of the building. This activity is expected to last for two days then noise levels will begin to reduce as the works get deeper into the trench. This building is a hotel. Specific effects on this receiver that could result from exceedances of the noise criteria include annoying and disturbing staff or guests. It is mechanically ventilated. The excavation works do not

None

Page 19

Connectus Project #: 2665 Client: Auckland Transport

12-26 Swanson Street

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

extend to the area in front of this building. They will only be exposed to noise from excavation when it is at the southern tip of the site. Only three apartments will be affected (those on the first, second and third floor on the northern end of the Albert Street faรงade). The general manager is not concerned about noise and vibration providing that there is good communication about the timing and nature of activities that he can pass onto the guests. This building is occupied by the NZ Trade Centre. All areas of the building are mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The section of the building closest to the works is two stories with a retail/ product display area on the ground floor and parking on the first floor. This part of the building will be most affected by noise from the excavation works. Noise levels at the first floor are predicted to be 80 to 85 dB LAeq during road surface removal but as this is a car park no further mitigation is required. Worst case noise levels at the ground floor retail/ product display area are predicted to exceed the noise criteria by no more than 5 dB so no further no further mitigation is required.

None

The main tower section of the building is located further down Swanson Street away from the works. Noise levels at the most exposed faรงade of this section of the building will not exceed the noise criteria by more than 5 dB during the piling works.

5.2

VIBRATION

Equipment/process

Vibration control measures

Excavator mounted rock breaker

Use lower vibration generating equipment such as a hand held jack hammer

Page 20

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Proposed mitigation and management measures



Construction of their buildings



Operational hours of their businesses



Operating environment that is required by the businesses

Further details of the meetings and comments made by the stakeholders are provided in Appendix D of the CNV DWP.

Page 21

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out when road surface removal begins within 20m of the building at the locations detailed in Table 8. Further monitoring will take place in these locations at regular intervals (monthly as a minimum). The monitoring will be carried out at first floor level unless a location at a higher level is specified. Table 8 Noise Monitoring Locations

Receiver

Monitoring Location

9 Albert Street

1m from façade of building

5 Albert Street

1m from façade of building

3 Albert Street

1m from façade of building

17 Albert Street

1m from façade of building

22 Customs Street

1m from façade of building

23-29 Albert Street

1m from façade of building

63 Albert Street

1m from façade of building

61 Albert Street

1m from façade of building

8 Albert Street (Sebel Hotel)

1m from façade of building

8 Albert Street (City Med)

1m from façade of building

70-74 Albert Street

1m from façade of building

12-26 Swanson Street

1m from façade of building

7.2

VIBRATION MONITORING

Vibration monitoring will be carried out when works begin on site to determine actual equipment vibration levels and the attenuation provided by the local ground conditions. If the initial vibration monitoring demonstrates that the emission radius for the excavator mounted concrete breaker is similar to that detailed in Section 5.2 of the CNV DWP then the monitoring as detailed below will be carried out. If the monitoring demonstrates that vibration levels are significantly lower then less properties may require monitoring, if they are higher then more properties may require monitoring. Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 16m of the building: 

22 Customs Street



5 Albert Street



9 Albert Street



17 Albert Street



55 Albert Street Page 22

Connectus Project #: 2665 Client: Auckland Transport



61 Albert Street



57 Albert Street

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001187 rd Revision: 03, Date: 3 June 2016

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 10m of the building: 

8 Albert Street



70-74 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 7m of the building: 

3 Albert Street



23-29 Albert Street



38 Wyndham Street



58 Albert Street



63 Albert Street

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 23

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: Tunnel Construction Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001184 Revision: 03

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

This page intentionally left blank.

DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Site Specific Construction Noise and Vibration Management Plan: Tunnel Construction

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001184

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/03/16

Final

C. Drewery

C Hind

3/06/16

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................9

Predicted Noise levels .......................................................................................................9

Mitigation ......................................................................................................................... 10 5.1

Noise

5.2

Vibration

Communication and Consultation..................................................................................... 13

Monitoring ....................................................................................................................... 14

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 14

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

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Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration from waterproofing and tunnel construction. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

1.2

SITE PLAN

The tunnel construction area is shown in Figure 1. Tunnel construction in the Customs Street Intersection will be below the traffic decks while the remainder of Albert Street will be in an open trench. Figure 1 Site Plan

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

2 RECEIVERS Receivers where noise levels due to tunnel construction works have the potential to exceed project noise or vibration standards are listed below, along with building use. Table 1 Affected receivers

Historic / vibration sensitive

Minimum Distance to Works, m

Noise Criteria, dB dB LAeq LAFmax

Vibration Criteria, (mm/s)

Address

Building use

22 Customs Street

Commercial

38 Wyndham Street

Commercial

58 Albert Street

Commercial

46-50 Albert Street

Commercial

52-56 Albert Street

Commercial

12-26 Swanson Street

Commercial

8 Albert Street

Mixed Use

70-74 Albert Street

Mixed Use

63 Albert Street

Commercial

22-26 Albert Street

This building has its own SSCNVMP so is not included in this plan

17 Albert Street

Commercial

15 Albert Street

Vacant

13 Albert Street

Vacant

9 Albert Street

Mixed Use

5 Albert Street

Commercial

61 Albert Street

Mixed Use

57 Albert Street

Commercial

55 Albert Street

Commercial

51 Albert Street

Commercial

41 Albert Street

This building has its own SSCNVMP so is not included in this plan

23-29 Albert Street

Commercial

3 Albert Street

Commercial

34-36 Wyndham Street

Commercial

37-39 Albert Street

Construction Site

65-71 Albert Street 35 Albert Street

This building has its own SSCNVMP so is not included in this plan Construction Site

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours or operation, are shown in Table 2 below. Table 2 Construction activities

Construction Activity Tunnel Box Construction

Area of works

Activity Start Date

Activity End Date

South end to Swanson

28 Aug 2017

26 Jan 2018

Swanson to Wolfe

01 Dec 2017

05 Jun 2018

Wolfe to North end

26 Mar 2018

15 Aug 2018

Hours

7am â€“ 7pm Mon - Sat

Details of construction equipment that is likely to be used for each of the above activities and the associated noise levels can be found in Appendix C of the CNV DWP. None of the equipment proposed for these works is expected to generate high levels of vibration. The equipment levels detailed in Appendix C of the CNV DWP are placeholders. All equipment will be measured operating independently and then actual equipment noise levels and model numbers will be recorded and updated within the table.

4 PREDICTED NOISE LEVELS The predicted worst case noise levels from each activity received at the most exposed part of each receiver are shown below in Table 3. These levels correspond to the construction equipment being located at its nearest position to the receiver and assume there is no physical mitigation between the noise source and the faĂ§ade of the building. Table 3 Predicted noise levels (no mitigation)

Predicted worst case noise levels (no mitigation), dB LAeq

Project Noise Standards exceedance, dB

22 Customs Street

38 Wyndham Street

58 Albert Street

46-50 Albert Street

52-56 Albert Street

12-26 Swanson Street

8 Albert Street

70-74 Albert Street

Address

Page 9

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

63 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

9 Albert Street

5 Albert Street

61 Albert Street

57 Albert Street

55 Albert Street

51 Albert Street

23-29 Albert Street

3 Albert Street

34-36 Wyndham Street

37-39 Albert Street

35 Albert Street

5 MITIGATION 5.1

NOISE

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Crane

Use straps rather than chains unless a risk assessment deems the use of straps unsafe.

Page 10

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

Figure 2 Noise barriers

5.1.1

Internal noise levels

Address 22 Customs Street

63 Albert Street

8 Albert Street Sebel Hotel

Comments

Recommended Building Mitigation

The building houses a number of retail outlets. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). With this mitigation implemented noise levels in all areas of the building will be acceptable and will not impact business operations. This building is occupied by AMI insurance at ground floor level and a number of other companies in the offices above. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The building has a glazed façade None and it is mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. When the tunnel construction is taking place directly outside of the building internal noise levels are predicted to be no more than 45 dB LAeq in all areas of the building. st This building contains the Sebel Hotel. There is an office space and café on the 1 th floor, a swimming pool on the 5 floor and floors 5 to 29 are hotel rooms. There is a conference room on level 5 but it does not overlook Albert Street. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and guests, loss of concentration, reduction in speech intelligibility and annoyance of café patrons who may then choose to eat elsewhere. The reception area of the building will get the most benefit from the noise barrier but the noise level at the façade is still predicted to be 80 dB LAeq when the crane is working on the traffic deck directly outside of the building. It is recommended that Page 11

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

the gaps around the main doors are reduced and acoustic seals fitted. This would reduce noise levels in the reception area to approximately 50 dB LAeq. Noise levels at the façade of the most exposed hotel rooms are predicted to exceed the noise criteria by no more than 5 dB. Providing that the balcony doors are not left open noise levels should not impact on the cafes operations. Patrons that use the balcony seating could experience noise levels in the region of 85 dB LAeq. Noise levels in the office are predicted to reach 55 dB LAeq when the crane is working on the traffic deck directly outside of the building.

8 Albert Street City Med

Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). The City Med operating hours 8am to 5.30pm Monday to Friday. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patients, loss of concentration and reduction in speech intelligibility making consultations difficult. With the reception/ waiting area in its current location there will not be any increase in internal noise levels when tunnel construction works are being carried out. However, if it moves closer to the Albert Street façade during renovation of the space, construction noise may be an issue. Further advice cannot be given on this area until the exact details of the renovation works are known.

None

There is unlikely to be any increase in noise levels in the radiology area, operating theatres, ECG and audiometry during excavation works. Noise levels due to tunnel construction activities are predicted to meet the noise criteria along the area of the Mills Lane façade where the doctors’ consultation rooms are located.

70-74 Albert Street

12-26 Swanson Street

Internal noise levels are predicted to reach 55 dB LAeq in the pharmacy when the crane is working on the traffic deck directly outside of the building. This building is a hotel. Specific effects on this receiver that could result from exceedances of the noise criteria include annoying and disturbing staff or guests. The tunnel construction works do not extend to the area in front of this building. They will only be exposed to noise from tunnel construction works when it is at the southern tip of the site. Only three apartments will be affected (those on the first, second and third floor on the northern end of the Albert Street façade). The general manager is not concerned about noise and vibration providing that there is good communication about the timing and nature of activities that he can pass onto the guests. This building is occupied by the NZ Trade Centre. All areas of the building are mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility.

None

Page 12

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

The section of the building closest to the works is two stories with a retail/ product display area on the ground floor and parking on the first floor. This part of the building will be most affected by noise from the tunnel construction works. Noise levels at the first floor are predicted to be 80 to 85 dB LAeq during these works but as this is a car park no further mitigation is required. Worst case noise levels at the ground floor retail/ product display area are predicted to exceed the noise criteria by no more than 5 dB so no further no further mitigation is required. The main tower section of the building is located further down Swanson Street away from the works. Noise levels at the most exposed façade of this section of the building are not predicted to exceed the noise criteria during the tunnel construction works.

5.2

VIBRATION

The proposed equipment items are not expected to generate vibration levels at receiver locations that exceed the Project criteria. If the initial on site vibration monitoring demonstrates otherwise, mitigation measures will be determined and put in place.

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Proposed mitigation and management measures



Construction of their buildings



Operational hours of their businesses



Operating environment that is required by the businesses

Further details of the meetings and comments made by the stakeholders are provided in Appendix D of the CNV DWP.

Page 13

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001184 rd Revision: 03, Date: 3 June 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out when the Telehandlers or Crawler Crane begin working on the construction deck within 15m of the building at the locations detailed in Table 6. Further monitoring will be carried out at these locations at regular intervals (monthly as a minimum). The monitoring will be carried out at first floor level unless a location at a higher level is specified. Table 6 Noise Monitoring Locations

Receiver

Monitoring Location

22 Customs Street

1m from façade of building

23-29 Albert Street

1m from façade of building In the ground floor reception/ café area

63 Albert Street

1m from façade of building

61 Albert Street

1m from façade of building

8 Albert Street

1m from façade of building

Sebel Hotel 8 Albert Street

1m from façade of building

City Med 70-74 Albert Street

1m from façade of building

12-26 Swanson Street

1m from façade of building

7.2

VIBRATION MONITORING

Vibration monitoring is not specifically required for these construction activities.

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 14

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: BACKFILL AND REINSTATEMENT Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001188 Revision: 03

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

This page intentionally left blank.

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: BACKFILL AND REINSTATEMENT

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001188

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/03/16

Final

C. Drewery

C Hind

3/06/16

Final

C. Drewery

C Hind

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

This page intentionally left blank

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................9

Predicted Noise and vibration levels................................................................................. 10 4.1

Noise

4.2

Vibration

Mitigation ......................................................................................................................... 12 5.1

Noise

5.2

Vibration

Communication and Consultation..................................................................................... 18

Monitoring ....................................................................................................................... 19

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 20

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration from trench backfilling and road surface reinstatement. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

1.2

SITE PLAN

The trench backfill area is shown in Figure 1. Note that reinstatement of the road surface in the Customs Street Intersection area is covered in the separate SSCNVMP for that area of works. Figure 1 Site Plan

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

2 RECEIVERS Receivers where noise levels due to trench backfill and road surface reinstatement works have the potential to exceed project noise or vibration standards are listed below, along with building use. Table 1 Affected receivers

Historic / vibration sensitive

Minimum Distance to Works, m

Noise Criteria, dB dB LAeq LAFmax

Vibration Criteria, (mm/s)

Address

Building use

9 Albert Street

Mixed Use

5 Albert Street

Commercial

3 Albert Street

Commercial

17 Albert Street

Commercial

15 Albert Street

Vacant

13 Albert Street

Vacant

22 Customs Street

Commercial

38 Wyndham Street

Commercial

61 Albert Street

Mixed Use

57 Albert Street

Commercial

55 Albert Street

Commercial

51 Albert Street

Commercial

41 Albert Street

This building has its own SSCNVMP so is not included in this plan

23-29 Albert Street

Commercial

58 Albert Street

Commercial

63 Albert Street

Commercial

46-50 Albert Street

Commercial

52-56 Albert Street

Commercial

12-26 Swanson Street

Commercial

37-39 Albert Street

Construction Site

70-74 Albert Street

Mixed Use

35 Albert Street

Construction Site

12 Albert Street

Mixed Use

22-26 Albert Street

This building has its own SSCNVMP so is not included in this plan

65-71 Albert Street

This building has its own SSCNVMP so is not included in this plan

34-36 Wyndham Street

Commercial

33 Wyndham Street

Commercial

26 Wyndham Street

Commercial

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours or operation, are shown in Table 2 below. Table 2 Construction activities

Construction Activity

Trench Backfill

Road surface reinstatement

Area of works

Activity Start Date

Activity End Date

South end to Swanson

27 Nov 2017

12 Apr 2018

Swanson to Wolfe

05 Mar 2018

03 Jul 2018

Wolfe to North end

16 Aug 2018

22 Nov 2018

South end to Swanson

13 Apr 2018

09 Jul 2018

Swanson to Wolfe

04 Jul 2018

11 Sep 2018

Wolfe to North end

23 Nov 2018

25 Jan 2019

Hours

7am â€“ 7pm Mon - Sat

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

Address

Predicted worst case noise levels (no mitigation), dB LAeq

Project Noise Standards exceedance, dB

Trench Backfilling 9 Albert Street

5 Albert Street

3 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

22 Customs Street

38 Wyndham Street

61 Albert Street

57 Albert Street

55 Albert Street

51 Albert Street

23-29 Albert Street

58 Albert Street

63 Albert Street

46-50 Albert Street

52-56 Albert Street

12-26 Swanson Street

37-39 Albert Street

70-74 Albert Street

35 Albert Street

8 Albert Street

34-36 Wyndham Street

33 Wyndham Street

26 Wyndham Street

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

Road surface reinstatement 9 Albert Street

5 Albert Street

3 Albert Street

17 Albert Street

15 Albert Street

13 Albert Street

22 Customs Street

38 Wyndham Street

61 Albert Street

57 Albert Street

55 Albert Street

51 Albert Street

23-29 Albert Street

58 Albert Street

63 Albert Street

46-50 Albert Street

52-56 Albert Street

12-26 Swanson Street

37-39 Albert Street

70-74 Albert Street

35 Albert Street

8 Albert Street

34-36 Wyndham Street

4.2

VIBRATION

Buildings which are classed as high or medium risk of damage as a result of the road surface reinstatement works are shown in Table 4. A receiver is classified as ‘high risk’ if it is located within the emission radius for an activity, and ‘medium risk’ if it is close to the contour with possible intermittent exceedance. Table 4 Vibration risk class

Address

Building type/ comments

Distance to works

Risk class (High or Medium)

22 Customs Street

Historic / vibration sensitive

High

5 Albert Street

Historic / vibration sensitive

High

9 Albert Street

Historic / vibration sensitive

High

3 Albert Street

Commercial

Medium

17 Albert Street

Historic / vibration sensitive

High

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

55 Albert Street

Historic / vibration sensitive

High

61 Albert Street

Historic / vibration sensitive

High

57 Albert Street

Historic / vibration sensitive

High

8 Albert Street

Residential

High

70-74 Albert Street

Residential

High

5 MITIGATION 5.1

NOISE

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be least 1.8m high and have a mass equal to or greater than 10 kg/m2. Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. Indicative location of noise barriers is shown in green in Figure 2 below. Figure 2 Noise barriers

Connectus Project #: 2665 Client: Auckland Transport

5.1.1

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

Internal noise levels

Address 15 Albert Street 13 Albert Street 9 Albert Street

5 Albert Street (NZ Gifts)

3 Albert Street

Comments Building currently vacant Building currently vacant The bottom floors of the building are occupied by Food Alley and are mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. Construction noise is unlikely to be an issue for the majority of the trench backfill works as it will be masked by mechanical services noise and general operational noise. When these works are taking place immediately outside of the building construction noise levels will be elevated and will be audible above background. Further consultation will take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled outside of the lunch time period when Food Alley is at its busiest. There are 16 residential apartments on floors 6 and 7 which are all naturally ventilated. Worst case noise levels at these floors are predicted exceed the noise criteria by less than 5 dB. As this exceedance will be for a short duration faรงade sound insulation improvements are not considered necessary. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. The building is mechanically ventilated. They have automatic doors which are not kept open. Background music plays at a low volume. Operational hours are 9.30am to 9.30pm. Construction noise is unlikely to be an issue for the majority of the trench backfilling works as it will be masked by the background music. When works are taking place immediately outside of the building construction noise levels will be elevated and will be audible above background. Further consultation will take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled to avoid their busiest times. The bakery/ cafe on the ground floor is the most exposed area of the building. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. The doors are kept wide open all day and so they are already exposed to

Recommended Building Mitigation None None

None

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

high levels of traffic noise, particularly heavy vehicles pulling away from the traffic lights. The radio plays loudly so it can be heard over the traffic noise. The business owner indicated that he is not concerned about construction noise and is likely to keep the doors open as usual.

17 Albert Street

The tower is occupied by offices. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and loss of concentration. The building has a glass façade and all offices are mechanically ventilated. Noise levels in the tower section of the building will remain below 45 dB LAeq for the majority of the works. Façade sound insulation improvements are therefore not considered necessary at this receiver. The convenience store on the ground floor is the most exposed area of the building. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. The rest of this building contains mostly offices, a few residential apartments and a language school. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). With this mitigation implemented noise levels in all areas of the building will generally be acceptable and will not impact business operations or disturb residents.

22 Customs Street

51 Albert Street 23-29 Albert Street

The building houses a number of retail outlets. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to shop elsewhere. Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189). With this mitigation implemented noise levels in all areas of the building will be acceptable and will not impact business operations. Building soon to be demolished None This is the ANZ building. It is occupied by a number of businesses including Chapman Tripp, Vero and ANZ. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration productivity and reduction in speech intelligibility. ANZ occupy the lower floors of the building that will be most affected by noise. The building has a glazed façade and it is mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. AS/NZS 2107:2000 None “Acoustics – Recommended design sound levels and reverberation times for building interiors” recommends a maximum noise level of 45 dB LAeq for general office areas. Noise levels in all office areas of the building are predicted to remain at or below 45 dB LAeq for the full duration of the works. The most affected area of the building will be the ground floor atrium that houses the reception area and café.

Connectus Project #: 2665 Client: Auckland Transport

38 Wyndham Street

46 to 58 Albert Street 63 Albert Street

61 Albert Street

57 Albert Street 37-39 Albert Street 35 Albert Street 8 Albert Street

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

Both ANZ and the café owner are willing to accept elevated noise levels for short durations providing that they are well informed of the works. Further consultation will also take place with this receiver before works begin outside of the building and where possible noisy activities will be scheduled outside of the most sensitive times. This building is occupied by the Hollywood Bakery at ground floor level and offices above. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patrons and patrons choosing to eat elsewhere. The operating hours of the bakery are 6.30am to 4.30pm. The front doors are permanently open onto Wyndham Street so they are already exposed to high levels of traffic noise, particularly heavy vehicles pulling away from the traffic lights. They play background noise music at a low volume. The manager indicated that she is not too concerned about construction noise and is likely to keep the doors open as usual. Despite numerous attempts we were unable to gain access to the main part of the building above the bakery. It is assumed that the building contains offices and is mechanically ventilated throughout. The first three floors above the bakery will be most affected by construction noise. When trench backfilling works are taking place immediately outside of the building construction noise levels on these three floors will likely be audible above background. Buildings soon to be demolished. This building is occupied by AMI insurance at ground floor level and a number of other companies in the offices above. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The building has a glazed façade and it is mechanically ventilated. The attenuation provided by the façade is predicted to be 35 dB Rw. When trench backfilling works are taking place directly outside of the building internal noise levels are predicted to reach 50 dB LAeq in offices overlooking Albert Street th on the ground to the 5 floor and then reduce to 45 dB LAeq on the remaining floors of the building. This building is occupied by the Shakespeare Hotel and Brewery. There is a bar at ground level which operates from 8am to 4am, a restaurant at first floor level and hotel rooms on the second floor. Loud music is played in the bar area. The owner of this business is not concerned about noise and vibration from the works. Their busiest times are in the evening and through the night when there will be no construction activities taking place. Carpark Construction site

None

None None

Construction site None st This building contains the Sebel Hotel. There is an office space and café on the 1

Connectus Project #: 2665 Client: Auckland Transport

Sebel Hotel

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

floor, a swimming pool on the 5th floor and floors 5 to 29 are hotel rooms. There is a conference room on level 5 but it does not overlook Albert Street. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and guests, loss of concentration, reduction in speech intelligibility and annoyance of café patrons who may then choose to eat elsewhere. The reception area of the building will get the most benefit from the noise barrier but the noise level at the façade is still predicted to be 80 dB LAeq. During the trench backfilling works directly outside of the building noise level in the reception area are predicted to be 55 dB LAeq. The reception area is going to be exposed to reasonably high noise levels for the duration of the Project. The doors are the weak point in the façade. It is recommended that the gaps around the doors are reduced and acoustic seals fitted. Only the rooms overlooking Albert Street on levels 5 and 6 will experience noise levels at the façade that exceed the noise criteria by more than 5 dB during trench backfilling activities on the east side of Albert Street. With a predicted façade noise reduction of 30 dB Rw the noise levels in these rooms could reach 55 dB LAeq when these works are taking place directly outside of the building. When trench backfilling works are being carried out directly outside of the building, construction noise will be audible inside the café even with the music playing. It is recommended that the gaps around the balcony doors in the café are reduced and acoustic seals fitted. Providing that the balcony doors are not left open noise levels should not impact on the cafes operations. Patrons that use the balcony seating area during this four day period will experience noise levels in the region of 85 dB LAeq. Further consultation will take place with the café owner before works begin outside of the building and where possible noisy activities will be scheduled to avoid their busiest times. Noise levels in the office are predicted to reach 55 dB LAeq during trench backfilling works directly outside of the building. Recommendations for façade sound insulation improvements are given in the SSCNVMP for the Albert Street piling works (Document Reference CRL-PAT-ENVCON-PLN-001189).

8 Albert Street City Med

The City Med operating hours 8am to 5.30pm Monday to Friday. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and patients, loss of concentration and reduction in speech intelligibility making consultations difficult. With the reception/ waiting area in its current location there is unlikely to be any increase in internal noise levels when these works are being carried out. However, if it moves closer to the Albert Street façade during renovation of the space, construction noise may be an issue. Further advice cannot be given on this area until the exact details of the renovation works are known. There is unlikely to be any increase in noise levels in the radiology area, operating theatres, ECG and audiometry during backfilling and reinstatement works. Noise levels due to trench backfilling are predicted to meet the noise criteria along the area of the Mills Lane façade where the doctors’ consultation rooms are located.

None

Connectus Project #: 2665 Client: Auckland Transport

70-74 Albert Street

12-26 Swanson Street

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

Internal noise levels are predicted to reach 55 dB LAeq in the pharmacy when these works are directly outside of the building. This building is a hotel. It is mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include annoying and disturbing staff or guests. The trench backfilling works do not extend to the area in front of this building. They will only be exposed to noise from these works when it is at the southern tip of the site. Only three apartments will be affected (those on the first, second and third floor on the northern end of the Albert Street faรงade).

None

The general manager is not concerned about noise and vibration providing that there is good communication about the timing and nature of activities that he can pass onto the guests. This building is occupied by the NZ Trade Centre. All areas of the building are mechanically ventilated. Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff, loss of concentration and reduction in speech intelligibility. The section of the building closest to the works is two stories with a retail/ product display area on the ground floor and parking on the first floor. This part of the building will be most affected by noise from the trench backfilling works. Noise levels at the first floor are predicted to be 80 to 85 dB LAeq during these works but as this is a car park no further mitigation is required. Worst case noise levels at the ground floor retail/ product display area are predicted to exceed the noise criteria by no more than 5 dB so no further no further mitigation is required.

None

5.2

VIBRATION

Equipment/process

Vibration control measures

Roller compactor (17t)

Use a smaller compactor, less than 10t. The frequency of the compactor should also be considered. It may be acceptable to use a bigger compactor depending on the frequency it is being operated at.

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001188 rd Revision: 03, Date: 3 June 2016

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Proposed mitigation and management measures



Construction of their buildings



Operational hours of their businesses



Operating environment that is required by the businesses

Further details of the meetings and comments made by the stakeholders are provided in Appendix D of the CNV DWP.

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 02, Date: 21 March 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out when trench backfilling activities begin within 20m of the building and when compacting begins within 20m of the building at the locations detailed in Table 8. The monitoring will be carried out at first floor level unless a location at a higher level is specified. Table 8 Noise Monitoring Locations

Receiver

Monitoring Location

9 Albert Street

1m from façade of building

5 Albert Street

1m from façade of building

3 Albert Street

1m from façade of building

17 Albert Street

1m from façade of building In a Language School classroom overlooking Albert Street. In one of the offices on Level 2

22 Customs Street

1m from façade of building In the most exposed retail area In the Level 2 meeting/ training room overlooking Albert Street

23-29 Albert Street

1m from façade of building In the ground floor reception/ café area

63 Albert Street

1m from façade of building

61 Albert Street

1m from façade of building

8 Albert Street

1m from façade of building

Sebel Hotel

In the hotel reception In the café In one of the Level 5 rooms overlooking Albert Street

8 Albert Street

1m from façade of building

City Med 70-74 Albert Street

1m from façade of building

12-26 Swanson Street

1m from façade of building

7.2

VIBRATION MONITORING

Page 19

Connectus Project #: 2665 Client: Auckland Transport

Construction Noise and Vibration Delivery Work Plan Doc. No. CRL-PAT-ENV-CON-PLN-000903 Revision: 02, Date: 21 March 2016

monitoring demonstrates that vibration levels are significantly lower then less properties may require monitoring, if they are higher then more properties may require monitoring. Vibration monitoring will be carried out at the following receivers when the compactor is first used within 15m of the building at: 

22 Customs Street



5 Albert Street



9 Albert Street



17 Albert Street



55 Albert Street



61 Albert Street



57 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 8m of the building at: 

8 Albert Street



70-74 Albert Street

Vibration monitoring will be carried out at the following receivers when concrete breaking begins within 5m of the building at: 

3 Albert Street

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 20

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: 41 ALBERT STREET Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001264 Revision: 03

FINAL 3rd June2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Site Specific Construction Noise Management Plan

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001264

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/03/16

Final for Issue

C. Drewery

C Hind

3/06/16

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

Table of Contents

...............................................................................................3 Document information .........................................................................................................................3 Revision History ..................................................................................................................................3 1

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................8

Predicted Noise and vibration levels...................................................................................9 4.1

Noise

4.2

vibration

9 11

Mitigation ......................................................................................................................... 12 5.1

Noise

5.2

internal noise levels

5.3

Vibration

Communication and Consultation..................................................................................... 15

Monitoring ....................................................................................................................... 19

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 19

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

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Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the ‘Project’). This SSCNVMP provides specific assessment of construction noise and vibration effects on the ‘Prince Albert Apartments’ at 41 Albert Street. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the Project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

The objective of this SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on the residents of 41 Albert Street, resulting from construction noise and vibration that does not comply with the Project Standards defined in Section 1.2 of the CNV DWP.

1.2

SITE PLAN

Figure 1 shows the location of the main works in relation to 41 Albert Street. Figure 1 Site plan

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

2 RECEIVERS The property is a split-level terraced, five storey property consisting of lobby and retail (currently under refurbishment) space on the ground floor with the first to fifth level consisting of residential apartments. All apartments are currently naturally ventilated. Table 1 Receiver information

Address

Building use

41 Albert Street

Mixed use (commercial/ residential)

Historic / vibration sensitive

Minimum Distance to Works, m

Noise Criteria, dB dB LAeq LAFmax

Vibration Criteria, (mm/s)

75**

90**

* This distance relates to piling, trench excavation and other works within the trench area. Advanced utilities relocation works may be carried out within approximately 2m of the building. ** This is the Monday to Saturday 07:00 to 22:00 noise criteria. The majority of works will be carried out during this period. For residential receivers the noise limit is reduced to 65 dB L Aeq & 80 dB LAFmax on Sundays and Public Holidays between 07:00 to 22:00 and to 60 dB LAeq & 75 dB LAFmax at all other times.

3 ACTIVITIES Construction activities along with proposed start and end dates, and hours of operation, are shown in Table 2 below. Table 2 Construction activities

Works Phase

Construction Activity

Area of works

Activity Start Date

Activity End Date

Advanced Utilities Works

Utilities relocation

Combined Services Trench â€“ Western footpath from Customs Street to Wyndham Street

Start in early May for 60 days

Vector Electricity from Swanson Street West across Albert Street down Swanson Street East

Start in early June for 20 days

Hours 7am to 7pm Mon - Sat

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

Works Phase

Construction Activity

Area of works

Activity Start Date

Activity End Date

Hours

Albert Street Piling and Capping Beam

Utilities location and exposure

West Side Wyndham St to Wolfe St

29 Nov 2016

05 Dec 2016

7.30am to 6.00pm

22 Dec 2016

07 Mar 2017

23 Mar 2017

27 Mar 2017

Installation of CFA piles

Mon - Sat

Installation of pile cap Excavation and Spoil Handling

Removal of existing road surface

Wyndham St to Swanson St

7am to 7pm Mon - Sat

(Ch550-490)

and st

Excavation 1 layer

28 Mar 2017

03 Apr 2017

Rock Dowel Installation

Excavation 2nd layer to bottom

20 Apr 2017

07 Sep 2017

Waterproofing and Tunnel Construction

Waterproofing and tunnel construction

South end to Swanson St (Ch614-490)

28 Aug 2017

26 Jan 2018

Trench Backfilling

Trench backfilling and reinstatement

South end to Swanson St (Ch614-490)

27 Nov 2017

Shotcrete and Strip Drain Installation and

7am to 7pm Mon â€“ Sat

11 Dec 2018

7am to 7pm Mon - Sat

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of the building are shown below in Table 3. These levels correspond to the construction equipment being located at its nearest position to 41 Albert St and assume there is no physical mitigation between the noise source and the faĂ§ade of the building. The predicted noise levels take into account whether works are being carried out at ground level or below the ground.

Page 9

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

Table 3 Predicted noise levels

Construction Activity

Project Noise Standard, dB LAeq

Predicted noise level with no mitigation, dB LAeq

100

75 75

83 85

8 10

Combined services trench â€“ west Vector Electricity from Swanson Street West across Albert Street down Swanson Street East Utilities location and exposure (inside trench area) Piling Removal of existing road surface Excavation 1st layer Excavation 2nd Layer to Bottom Trench backfilling Waterproofing and tunnel construction Rock fall protection netting Pre-drilling Drilling and rock dowel installation

Project Noise Standards exceedance, dB

Noise levels will decrease with distance from the noise source such that noise levels at higher floors and at facades not directly exposed to the noise source will be lower than those shown above. This is illustrated in Figure 2 showing noise levels due to CFA pile installation decreasing with increasing floor level. Figure 2 CFA Piling - facade noise levels

Page 10

Connectus Project #: 2665 Client: Auckland Transport

4.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

VIBRATION

Works Phase

Equipment

Emission radius (m)

Distance to works (m)

Risk Class

Advanced Utilities Works

Excavator mounted rock breaker

High

Albert Street Piling and Capping Beam

Soilmec Hydraulic Rotary Rig (est SR80)

Low

Rock Dowel Installation

Excavator mounted rock breaker

High

Trench Backfilling

Compactors

High

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

5 MITIGATION 5.1

NOISE

Mitigation is required to meet the noise criteria at the 41 Albert Street. In addition to the general noise and vibration control measures outlined in Section 7 of the CNV DWP, the following specific noise mitigation measures should be implemented (Table 5): Table 5 Specific Noise Mitigation Measures

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Crane

Use straps rather than chains unless a risk assessment deems the use of straps unsafe.

Concrete cutting

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when:  

Cutting within 300mm of a kerb or canopy structure Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

Vacuum Excavation

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

Construction vehicles

Tonal reversing alarms will not be used. Broadband alarms will be used instead.

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be least 1.8m high and have a mass equal to or greater than 10 kg/m2. Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. Indicative location of noise barriers is shown in Figure 3 below.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

Figure 3 Noise barriers

5.2

INTERNAL NOISE LEVELS

Noise measurements were carried out at the 41 Albert Street to determine existing ambient noise levels and the sound reduction provided by the façade. The noise measurements were taken on 7th December between 10am and 11am. The measurement results are detailed in Table 6. Table 6 41 Albert Street Ambient Noise Levels

Measurement Location

Noise Level dB LAeq

Noise sources

Comments

Outside (0.5m from façade)

Traffic, construction at 35-39 Albert

Traffic noise dominant, construction (hammering) intermittent

Inside – windows open

Traffic, construction

Traffic noise dominant, construction (hammering) intermittent

Inside – windows closed

Traffic

Low frequency from buses etc dominant. Construction barely audible

It can be seen from Table 6 that the façade achieves a sound reduction of 15 dB with windows ajar and 25 dB with windows closed. The building is naturally ventilated so windows are usually open during the day. Residents that are home during the day currently experience noise levels in the region of 53 dB LAeq. Open windows are the weak point of the façade. It is recommended that the living rooms of apartments on the Albert Street façade are fitted with mechanical ventilation so that residents who are home during the day can close their windows and still get the required amount of fresh air. Some of the advanced utilities works outside of the trench alignment are within close proximity to the building at 41 Albert Street. The closest works are the Combined Service Trench (Western Footpath). Internal noise levels due to these advanced utilities works are predicted to be up to 70 dB(A) even with mechanical ventilation installed and windows shut. These works will only be directly outside of the

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

building for a limited duration. Further consultation will take place with the affected parties before these works begin to determine if the works can be scheduled for a time that least impacts them. An alternative option that has been suggested during consultation with the residents is to provide a HOP card for use by residents who are normally home during the day so that when noisy works are closest to the building they can go out for the day. This option should be discussed further with the residents particularly when considering the advanced utilities works. 5.2.1

Building Modification

Where building modification is recommended the following actions will be undertaken: 

The building owner will be contacted to discuss details of the recommended building mitigation.



Any approvals required for the works under the Resource Management Act, Building Act and Historic Place Act will be obtained.



On completion of the mitigation works the property will be reinstated to a similar condition to that existing immediately prior to the works commencing.

Where mechanical ventilation is recommended it will be designed to achieve the requirements of Clause G4 of the New Zealand Building Code. At the same time as meeting this minimum requirement, the sound of the system shall not exceed 30 dB LAeq(30s) when measured 1 m away from any grille or diffuser. The occupant must be able to control the ventilation rate in increments up to a high air flow setting that provides at least 6 air changes per hour. At the same time as meeting this requirement, the sound of the system shall not exceed 35 dB LAeq(30s) when measured 1 m away from any grille or diffuser.

5.3

VIBRATION

Equipment/process

Vibration control measures

Excavator mounted rock breaker

Use lower vibration generating equipment such as a hand held jack hammer

Roller compactor (17t)

Use a smaller compactor, less than 10t Page 14

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

A detailed pre-construction building condition survey will be undertaken in accordance with Section 10.4 of the CNV DWP. A post-construction condition survey will be conducted a week after the conclusion of works in the area that have the potential to generate vibration at levels approaching or exceeding the limits in Condition 33.

6 COMMUNICATION AND CONSULTATION Section 9.1 of the CNV DWP details the communication procedures in relation to construction noise and vibration effects. The complaints process is detailed in Section 9.2 of the CNV DWP. Consultation with the 41 Albert Street took place from mid-November to mid-February. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Mitigation & management measures that will be implemented



Construction of the building

Further details of the meetings and comments made by the stakeholders are provided in Table 8.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

Table 8 Stakeholder Consultations

Address of Sensitive Receiver

Representatives

41 Albert Street (Albert Street Apartments)

9/11/15 Interview on site with building manager, Body Corporate Chair, and a further resident representative

Issue raised or comment provided Some residents are at home during the daytime period so will be affected by day time construction activities. All apartments are naturally ventilated so windows overlooking Albert Street are open in most apartments during the day. Ground floor is commercial and currently vacant but the owner is looking to sell it. Concern about the cumulative effects of noise from the Project and noise from construction on 2 adjacent sites. They would like a SSCNVMP for the building

Email sent to all affected receivers with apartments on the Albert Street faรงade to get feedback on the option of installing mechanical ventilation. Responses below 31/01/16 Email from the owner of Unit 3A

29/01/16 Email from owner of 4B

Email from owner of 3B

I would be open to having mechanical ventilation installed in the living area to appease the tenant so she did not have to open the windows facing onto Albert Street during the CRL works period. I am unaware of any other options. I am affected, as I am home a lot during the day and therefore a bit worried about the upcoming works. Of course having my ranch-slider open is my main means of ventilation during the summer. Mechanical ventilation- This option is not appealing, because I am sceptical that it would bring enough air in and I think in the long term it

Page 16

How comment was incorporated (or if not incorporated, reason why not) Mechanical ventilation is recommended for living rooms on the Albert Street faรงade. A HOP card is an alternative option for residents who are home during the day to use when particularly noisy works are taking place directly outside of the building. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Section 5 of this SSCNVMP implemented, works may be audible but generally will not be at a level that disturbs residents. Noise levels during the advanced utilities works will be intrusive but for a limited duration. Further consultation will take place with the affected parties before the advanced utilities works begin to determine if the works can be scheduled for a time that least impacts them. Vibration may be felt but will not be at a level that damages the building. Section 7 of this SSCNVMP provides details of the proposed noise and vibration monitoring. This SSCNVMP is for their building.

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

would lower the value of our apartment. Would it be removed when construction is complete? We do have the heat pump bringing air from the south side of the building. We have used the fan during the hottest period and it helps, but I don't think it is effective enough to make up for closing the windows. I have someone coming in to service it next week. We will then try the cooler. This of course wouldn't help if they start demolition on 51-53 Albert Street before you have finished with Albert Street. We have very good Windows on this side of the building, and would like to see any construction on that site delayed for 5 years. The property is for sale, perhaps Auckland Transport would like to purchase it and add it to their portfolio of car parks. Scheduling- The number one thing you can do for scheduling is not to do the major work on our block during the height of the summer. Even with the limited construction going on now the impact is far worse during hot and humid weather. Certainly if all the most disruptive work was done in the winter, we would be very happy. Relocation- this is too complicated and disruptive to appeal. Since we are dealing with Auckland Transport an easier and cheaper solution would be for them to provide us with concession HOP cards, so we can escape during the day when the work will be at its worst. Secondary Glazing- this could work if we can get the fresh air we need from the heat pump. Replacing the existing Windows with double glazed Windows would be a huge improvement to this apartment.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

3/02/16

When will the work begin outside 41 Albert st

Email from owner of 2A

How long will the work take from begin to end outside our building How many days a week will the workers there ( are you planning on working Saturdays ) What hour of the day will work begin and end Are you offering to help with air filtration, and noise barrier

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001264 Revision: 03, Date: 3 June 2016

7 MONITORING Section 10 of the Project CNV DWP provides details of the methodology for noise and vibration monitoring.

7.1

NOISE MONITORING

Noise monitoring will be carried out when concrete breaking begins within 20m of the building and when piling begins within 15m of the building. Measurements will be taken 1m from the faรงade of the building at first floor level and in one of the apartments overlooking Albert Street. The exact location of the internal measurements will be determined closer to commencement of the works in consultation with the affected receivers.

7.2

VIBRATION MONITORING

Vibration monitoring will be carried out when works begin on site to determine actual equipment vibration levels and the attenuation provided by the local ground conditions. Vibration monitoring will be carried out at the ground floor level of 41 Albert Street when concrete breaking begins within 16m of the building. The duration of the monitoring will depend upon the initial results. If levels are lower than predicted further monitoring may not be required. If levels are higher than predicted it may be necessary to set up a continuous logger for the duration of the concrete breaking works in the vicinity.

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 19

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: DISTRICT COURT - DRAFT Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001265 Revision: 03

FINAL 3rd June 2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Site Specific Construction Noise Management Plan

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001265

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

21/03/16

Final

C. Drewery

C Hind

3/06/16

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

ActiVities ...........................................................................................................................8 3.1

Noise

3.2

Vibration

8 11

Predicted Noise and vibration levels................................................................................. 11 4.1

Noise

4.2

vibration

Mitigation ......................................................................................................................... 13 5.1

Noise

5.2

internal noise levels

5.3

Vibration

Communication and Consultation..................................................................................... 17

Monitoring ....................................................................................................................... 17

7.1

Noise monitoring

7.2

Vibration monitoring

Staff................................................................................................................................. 18

Page 5

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

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Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration received at the District Court located at 65-71 Albert Street. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3rd June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

1.2

SITE PLAN

Figure 1 Site plan

Site compound

Main works area

District Court

Page 7

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

2 RECEIVERS The District Court occupies the building at 65-71 Albert Street. The building contains a number of court rooms, offices and meeting rooms. The courts generally operate from 8am to 5pm and are located on level 2 and above. They use electronic transcription and the microphones are extremely sensitive to noise and vibration so low background noise levels are essential. All windows are single glazed and the building is mechanically ventilated throughout. The District Court is located approximately 11m from the proposed cut and cover works. A construction works area is proposed to be located directly outside of the District Court approximately 6m from the building. The advanced utilities works come within 2m of the building.

3 ACTIVITIES 3.1

NOISE

Construction activities which have the potential to give rise to an exceedance of the Project Noise Standards (detailed in Section 1 of the CNV DWP) at the District Court are shown in Table 1 below. Start/end dates and hours of operation are also provided for each area of works. Start and end dates relate to the wider construction works area, and it is expected that activities around the trench itself will only generate significant noise in the vicinity of the District Court for a fraction of the overall activity duration. The main noise sources affecting the District Court will be those located within the construction compound area directly outside of the Court building. This construction works area will be in use for the full duration of the Project. Table 1 Construction activities

Works Phase

Construction Activity

Area of works

Activity Start Date

Activity End Date

Advanced Utilities Works

Utilities Relocation

KingstonWyndham St Stormwater Works

Early May

35 days

Combined Service Trench â€“ Western Footpath including crossings

Early May

60 days

Wyndham St Stormwater Works

Early May

25 days

Wyndham St Chorus Works

Early June

15 days

Albert Street South East Quarter

14 Sep 2016

20 Sep 2016

Albert Street Piling and Capping Beam

Utilities location and exposure

Hours

7am â€“ 7pm Mon - Sat

7am to 7pm

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Connectus Project #: 2665 Client: Auckland Transport

Works Phase

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

Construction Activity

Installation of CFA piles

Installation of pile cap

Excavation and Spoil Handling

Removal of existing road surface

Area of works

Activity Start Date

Activity End Date

Hours

Albert South West Quarter

29 Nov 2016

05 Dec 2016

Mon - Sat

Albert Street South East Quarter

26 Oct 2016

12 Dec 2016

Albert South West Quarter

22 Dec 2016

07 Mar 2017

Albert Street South East Quarter

02 Nov 2016

23 Dec 2016

Albert South West Quarter

12 Jan 2017

03 Mar 2017

South End to Ch550

23 Mar 2017

28 Mar 2017

(Ch614-550)

7am to 7pm Mon - Sat

and Shotcrete and Strip Drain Installation

Excavation 1st layer

29 Mar 2017

20 Apr 2017

Excavation 2nd layer to bottom

21 Apr 2017

01 Sep 2017

28 Aug 2017

26 Jan 2018

and Rock Dowel Installation

Waterproofing and Tunnel Construction

Waterproofing and tunnel construction

South End to Swanson

Trench Backfilling

Trench backfilling and reinstatement

South End to Swanson

3.1.1

7am to 7pm Mon â€“ Sat

(Ch614-490) 27 Nov 2017

12 Apr 2018

(Ch614-490)

7am to 7pm Mon - Sat

Equipment

Construction equipment used for each of the above activities is shown in Table 2 with sound pressure level at 5m resulting from individual equipment items, as well as cumulative sound pressure level from simultaneous use of multiple equipment items during each activity. Construction equipment within the construction compound area is shown separately as these noise sources are closest to the District Court. These equipment items may also be included in one or more construction activities.

Table 2 Construction Equipment

Construction Activity

Equipment

Advanced Utilities / Service location and

Concrete saw Vacuum Excavation (type TBC)

Sound pressure level dB LAeq @ 5m 91 84

Cumulative Sound pressure level dB LAeq @ 5m 92 Page 9

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

Construction Activity

Equipment

exposure

Excavator-mounted rock breaker Soilmec Hydraulic Rotary Rig Excavator (est 15t) Concrete truck Mecbo tracked Concrete Pump Crane (40t) Excavator (est 15t) Hydraulic rock splitter Crane (40t) Road planer / milling machine Excavator 20t 6-wheel tipper trucks (10t) Excavator 20t Small excavator (5t â€“ 14t) 6-wheel tipper trucks (10t) Excavator 14t Front end wheel loader Crawler crane with clamshell bucket (80t) long reach excavator 6-wheel tipper trucks (10t) Telehandlers Telescopic Crawler Crane Rough terrain scissor lift Mobile concrete pump Crane Delivery trucks Excavator mounted drill rig Crane Delivery trucks Angle grinder Excavator-mounted rock breaker Concrete core drill Telehandlers Excavator-mounted drill rig Water bowser Diesel compressor Petrol/diesel generator Crawler crane est 50t Delivery trucks Excavators 5-15t Front end loader Bobcat loader 6-wheel tipper trucks Roller compactors Plate compactors Mobile concrete pump Mobile concrete pump Front end loader Delivery trucks Petrol/diesel generator

Installation of CFA piles

Installation of pile cap Removal of existing road surface Excavation 1st layer

Excavation 2nd Layer to Bottom

Waterproofing and tunnel construction

Rock fall protection netting Pre-drilling

Drilling and rock dowel installation

Trench backfilling

Southern construction compound

Sound pressure level dB LAeq @ 5m 90 88 79 83 84 82 79 90 82 88 84 85 84 79 76 79 86

Cumulative Sound pressure level dB LAeq @ 5m 90

81 76 85 77 84 86 81 76 92 81 76 86 90 91 85 92 87 79 71 81 76 79 86 82 76 85 86 86 86 86 76 71

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Connectus Project #: 2665 Client: Auckland Transport

3.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

VIBRATION

Construction activities and equipment which are expected to generate significant vibration levels in the vicinity of the District Court are shown in Table 3 below along with start and end dates, and hours of operation. The start and end dates relate to the wider construction works area, and it is expected that activities will only generate significant vibration in the vicinity of the District Court for a fraction of the overall activity duration. Table 3 Vibration sources

Works Phase

Equipment

Type of works

Activity Start Date

Activity End Date

Hours

Advanced Utilities

Excavator mounted rock breaker

Concrete breaking

Early May 2016

June 2016

7am to 7pm

Rock Dowel Installation

Excavator mounted rock breaker

Pile breaking

23 Mar 2017

01 Sep 2017

Trench Backfilling

Roller compactors

Compacting fill

Plate compactors

Compacting fill in low clearance areas

Mon - Sat 7am to 7pm Mon - Sat

27 Nov 2017

12 Apr 2018

7am to 7pm Mon - Sat

4 PREDICTED NOISE AND VIBRATION LEVELS 4.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of the District Court building are shown below in Table 4. These levels correspond to the construction equipment being located at its nearest position relative to the building and assume there is no physical mitigation between the noise source and the faĂ§ade of the building. The predicted noise levels take into account whether works are being carried out at ground level or below the ground. Noise from the southern construction compound directly outside the District Court has been predicted separately although the relevant equipment items have also been included in predicted noise from other activities. Table 4 Predicted noise levels

Construction Activity

Project Noise Standard, dB LAeq

Predicted noise level with no mitigation, dB LAeq

Project Noise Standards exceedance, dB

Kingston-Wyndham St Stormwater Works

100

Combined Service Trench â€“ Western Footpath

Wyndham St Stormwater

16 Page 11

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

Works Wyndham St Chorus Works Service location and exposure Installation of CFA piles Installation of pile cap Removal of existing road surface st Excavation 1 layer nd Excavation 2 Layer to Bottom Trench backfilling Waterproofing and tunnel construction Rock fall protection netting Pre-drilling Drilling and rock dowel installation Southern construction compound

75 75

88 88

13 13

75 75

78 80

3 5

Noise levels will decrease with distance from the noise source such that noise levels at higher floors and at facades not directly exposed to the noise source will be lower than those shown above. g with increasing floor level. Figure 2 2 shows noise levels due to CFA pile installation decreasing with increasing floor level. Figure 2 CFA Piling - facade noise levels

Page 12

Connectus Project #: 2665 Client: Auckland Transport

4.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

VIBRATION

Vibration regression curves and emission radii for the vibration sources in Table 3 can be found in the CNV DWP Section 5.2. The emission radius is the distance at which vibration levels from an activity/equipment item are expected to exceed the Project Vibration Standards for a particular type of building. For the purposes of assessing vibration, the District Court building is classed as historic/ vibration sensitive structure. A receiver is classified as ‘high risk’ if it is located within the emission radius for an activity, and ‘medium risk’ if it is close to the contour with possible intermittent exceedance. The emission radii and risk class associated with each vibration source at the District Court are shown in Table 5. Table 5 Vibration risk class

Works Phase

Equipment

Emission radius (m)

Distance to works (m)

Risk Class

Advanced Utilities Works

Excavator mounted concrete breaker

High

Rock Dowel Installation

Excavator mounted concrete breaker

High

We note that the emission radii are based on generic data based on conservatively sized equipment and ground conditions. Vibration levels from actual equipment at the site may differ and are likely to be less than assumed for the emission radius. Monitoring will be carried out at the earliest opportunity on site to determine the adjustments for ground conditions and actual equipment items. Additional monitoring will be conducted within the District Court to determine the building response. If necessary, equipment selections will be modified to ensure that the risk of vibration exceeding the building damage criteria is minimised as far as practicable.

5 MITIGATION 5.1

NOISE

Mitigation is required to meet the noise criteria at the District Court. In addition to the general noise and vibration control measures outlined in Section 7 of the CNV DWP, the following specific noise mitigation measures should be implemented (Table 6): Table 6 Specific Noise Mitigation Measures

Equipment/process

Noise control measures

Excavators, bobcats, loaders

Grease tracks regularly

Crane

Use straps rather than chains unless a risk assessment deems the use of straps unsafe.

Page 13

Connectus Project #: 2665 Client: Auckland Transport

Concrete cutting

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when: 

Cutting within 300mm of a kerb or canopy structure



Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

Construction Vehicles

Tonal reversing alarms will not be used. Broadband alarms will be used instead.

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be least 1.8m high and have a mass equal to or greater than 10 kg/m2. Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. Indicative location of noise barriers is shown in green in Figure 3 below. Figure 3 Noise barriers

Temporary barrier during piling

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

sources located at or below ground level, and received at ground floor level. Little reduction is provided for receivers located at Level 3 and above. With the above mitigation and management measures implemented and barriers installed, the noise levels at the most exposed façade of the District Court will still exceed the noise criteria by more than 5 dB during some Project construction activities. Further mitigation is therefore necessary to achieve acceptable internal noise levels.

5.2

INTERNAL NOISE LEVELS

Noise measurements were carried out at the District Court to determine existing ambient noise levels. The noise measurements were taken on 21st January between 11am and 12pm. The measurement results are detailed in Table 7. Table 7 District Court Ambient Noise Levels

Measurement Location

dB LAeq

dB LAmax

Noise source(s)

Court Room 4 - 2m from window

Traffic - cars barely audible; low frequency noise buses/trucks dominant. HVAC on but barely audible

Court Room 4 Centre of room

Traffic - cars barely audible; low frequency noise buses/trucks dominant. HVAC on but barely audible

Albert St footpath outside ADC, 1m from Kerb

Traffic, pedestrians

It can be seen from Table 7 that the background noise levels in the Court Rooms when empty are very low. Low background noise levels are required for the electronic transcription service to operate effectively. It is expected that background noise levels will be slightly higher when the court rooms are occupied. An internal construction noise limit of 40 dB LAeq is recommended for the court rooms on the Albert Street façade. The building façade currently provides a sound reduction of approximately 30 dB(A). The windows are the weak point. The building is mechanically ventilated in all areas. The southern construction compound will be in use for the duration of the Project. The noise sources associated with the compound include construction vehicles, generators and loading/ unloading of steel and other construction materials. The noise level at the façade of the second and third floor court rooms is predicted to be 83 dB LAeq due to noise from the construction compound. With the current glazing this would give an internal noise level of approximately 53 dB LAeq which is too high when the courts are operating. It is recommended that the court rooms on the second and third floor that overlook Albert Street (Court 4, Court 15, Court 10 and Court13) and any Jury retiring rooms attached to these court rooms on the Albert Street façade are fitted with secondary glazing. The secondary glazing should be designed so that an internal level of 40 dB LAeq is achieved when the southern construction compound is in use. The following actions will be undertaken with regard to building modification: 

The building owner will be contacted to discuss details of the recommended building mitigation.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016



Any approvals required for the works under the Resource Management Act, Building Act and Historic Place Act will be obtained.



On completion of the mitigation works the property will be reinstated to a similar condition to that existing immediately prior to the works commencing.

Where secondary glazing is recommended the following should be implemented: 

The existing window must be sealed before the secondary window is installed.



The secondary window shall be installed in a separate frame to the primary window, with no direct connections between the two frames.



The reveals between the primary and secondary windows shall be lined with an acoustically absorbent material having at least absorption class C in accordance with ISO 11654:1997.



Opening sections of the secondary window shall be aligned with openings in the primary window.

The installation of secondary glazing in these areas will mitigate all other construction activities in the trench alignment to acceptable levels. Some of the advanced utilities works outside of the trench alignment are within close proximity to the District Court building. The closest works are Kingston to Wyndham Street Stormwater Works, the Combined Service Trench (Western Footpath) and the Wyndham Street Stormwater Works. Internal noise levels due to these advanced utilities works are predicted to be 50 to 60 dB(A) even with secondary glazing fitted. It will therefore be necessary to work closely with the District Court to schedule these activities for a time that will least impact the court and not disrupt court proceedings.

5.3

VIBRATION

In addition to the general noise and vibration control measures outlined in Section 7 of the Project CNV DWP the following specific vibration mitigation measures (Table ) should be implemented if the initial on site vibration monitoring demonstrates that the building damage vibration limits will be exceeded: Table 8 Specific Vibration Mitigation Measures

Equipment/process

Vibration control measures

Excavator mounted rock breaker

Use lower vibration generating equipment such as a hand held jack hammer

Roller compactor (17t)

Use a smaller compactor, less than 10t

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

6 COMMUNICATION AND CONSULTATION Section 9.1 of the CNV DWP details the communication procedures in relation to construction noise and vibration effects. The complaints process is detailed in Section 9.2 of the CNV DWP. Consultation with Auckland Programme Manager at the District Court took place on 16/12/15. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Mitigation & management measures that will be implemented



Construction of the building



Operating hours



Locations of particularly noise and vibration sensitive areas in the building

The Auckland Programme Manager raised general concerns about noise and vibration impacts. In particular the Courts on level 2 and above use electronic transcription and the microphones are extremely sensitive to noise and vibration so low background noise levels are required. As indicated in Section 5.2 ongoing consultation is going to be required to schedule the advanced utilities works in the vicinity of the District Court for a time that will not impact court operations.

7 MONITORING In addition to the external noise and vibration monitoring detailed in the CNV DWP, internal noise and vibration measurements will be taken in the most exposed court room when the construction area immediately outside of the building is set up and in use and when piling is occurring within 25m of the building.

7.1

NOISE MONITORING

The Youth Court (Court 15) on Level 2 has been provisionally selected for noise monitoring as it is on the area of the façade most exposed to expected construction noise, taking into account the effect of the noise barriers as described in Section 5.1 and is one of the most noise sensitive areas. Noise st levels will also be measured in the ground floor victim advisors area and 1 floor offices at critical phases of construction (at the commencement of services location and exposure, CFA piling and set up/ use of the construction area outside of the building) to ensure that the noise barriers are providing the required level of noise mitigation in these areas and to check regenerated noise is not an issue. The final location will be confirmed in consultation with District Court to ensure that the measurements do not impede court operations. A microphone and ancillary equipment (logger, battery, case) will be set up in the selected location(s) before the commencement of construction activities in the defined area. Background noise will be measured prior to construction to determine the contribution of extraneous noise sources such as traffic and building services.

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001265 rd Revision: 03, Date: 3 June 2016

If the initial internal measurements show noise to be at or close to levels that may impede operations it may be necessary to install continuous noise loggers in the District Court building.

7.2

VIBRATION MONITORING

Vibration from construction activities in the trench alignment is not predicted to exceed the building damage criteria. Vibration monitoring will only be necessary during the advanced utilities works where vibration levels are predicted to exceed the Project criteria. The monitoring will be carried out at ground floor level. The northern end of the corridor outside the victim advisors area has been provisionally selected for monitoring.

8 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 18

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: STAMFORD PLAZA HOTEL Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001186 Revision: 07

Final 25th May 2016

COMMERCIAL IN CONFIDENCE

This page intentionally left blank.

DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: STAMFORD PLAZA HOTEL

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001186

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

29/02/16

11/03/16

IPR Comments Addressed -

C. Drewery

C Hind

24/03/16

For Stamford Plaza Review

C. Drewery

C Hind

31/03/16

For Stamford Plaza Review – updated to include initial comments

C. Drewery

C Hind

9/05/16

For Stamford Plaza Review – updated to include initial comments from Stamford Plaza and their noise expert

C. Drewery

C Hind

17/05/16

Final for Issue

C. Drewery

C Hind

25/05/16

Final for Issue – updated to include latest comments from Stamford Plaza

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Table of Contents _Toc451955877 Document information .........................................................................................................................3 Revision History ..................................................................................................................................3 1

Introduction........................................................................................................................6 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................7

Activities ............................................................................................................................8

Mitigation ......................................................................................................................... 11 4.1

Noise

4.2

Vibration

Predicted Noise and Vibration Levels ............................................................................... 14 5.1

Noise

5.2

vibration

Communication and Consultation..................................................................................... 17

Monitoring ....................................................................................................................... 21 7.1

Noise monitoring

7.2

Vibration monitoring

Contingency Measures .................................................................................................... 23 8.1

Noise

8.2

Vibration â€“ Building Damage

8.3

Vibration - Amenity

Staff................................................................................................................................. 24 th

Appendix A: Utilities and Piling Programme (As issued to Stamford plaza on 5 May 2016) .............. 25

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the â€˜Projectâ€™). This SSCNVMP provides specific assessment of construction noise and vibration effects on the Stamford Plaza Hotel located at 22-26 Albert Street. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: CRL-PAT-ENV-CON-PLN-000903 Revision 5 dated 24th March 2016) as it contains further details of the Project, noise criteria, monitoring, general mitigation measures and other information. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

The objective of this SSCNVMP is to detail the Best Practicable Option to avoid, remedy or mitigate adverse effects on the Stamford Plaza, including itsguests and/or visitors, resulting from construction noise and vibration.

1.2

SITE PLAN

Figure 1 shows the location of the works in relation to the Stamford Plaza hotel. Figure 1 Site plan

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

2 RECEIVERS The Stamford Plaza Hotel occupies the building at 22-26 Albert Street from the basement up to Level 10. Level 11 and above is occupied by Stamford Residences. The basement level is used for car parking; Ground Floor/Mezzanine for lobby, reception, bar/restaurant, function and conference rooms; Levels 3 and 4 are used for car parking and hotel rooms; and Levels 5 to 10 are used for hotel rooms. All spaces are mechanically ventilated. Measurements by Marshall Day Acoustics (MDA) as documented in the Third Supplementary Statement of Evidence of Craig Michael Fitzgerald, dated 23 October 2013, indicate that the external to internal noise level difference in hotel suites is in the order of 35 dB. Table 1 Receiver information

Address

22-26 Albert Street

Building use

Mixed use (commercial/ residential)

Historic / vibration sensitive

Minimum Distance to Works, m

Project Noise Standards dB dB LAeq LAFmax

Project Vibration Standard s, (PPV mm/s)

Project Vibration Amenity Standards, (PPV mm/s) 0.3mm/s and 35 dBA (10pm-7am in bedrooms) 1.0 mm/s (7am-10pm in bedrooms)

75*

90*

5 2.0 mm/s (7am-10pm in retail and office spaces (including work areas and meeting rooms)

Stamford Plaza has a number of tenant businesses at ground floor level. These include Grasshopper restaurant, BaaBaaBlack Sheep CafĂŠ, United Travel, Expresso Coffee School, Izakya Kintano Japenese Restaurant, Imagine Fitness Centre and Thai Massage. Designation Condition 38.4 allows for the Project Vibration Standards to be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place. Based on the building condition surveys and the initial assessments by the structural engineer the building vibration limits could be relaxed. However, it is considered prudent to keep the Project Vibration Building Damage Standards to better enable compliance with the Project Vibration Amenity Standards.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

3 ACTIVITIES Construction activities which have the potential to give rise to an exceedance of the Project Noise and/ or Vibration Standards (detailed in Section 1 of the CNV DWP) at the Stamford Plaza are shown in Table 2 below. Start/end dates and hours of operation are also provided for each area of works. The start and end dates relate to the wider construction works area, it is expected that activities will only generate significant noise and/or vibration in the vicinity of the Stamford Plaza for a fraction of the overall activity duration. Table 2 Construction activities

Works Phase

Construction Activity

Area of works

Activity Start Date*

Activity End Date*

Hours

Advanced Utilities Works

Utilities relocation

Between Points A and B:

13 Jun 2016

5 Aug 2016

7am to 7pm

(including saw cutting and vacuum excavation)

Vector Electricity across Albert Street at Swanson Street

Utilities location and exposure

Between Points A and B:

(including saw cutting and vacuum excavation)

Both sides of Albert Street

Installation of CFA piles

Between Points A and B:

Albert Street Piling and Capping Beam

Installation of pile cap Excavation and Spoil Handling

Removal of existing road surface

Both sides of Albert Street

Swanson St to Wolfe St (Ch370490)

Mon - Fri

20 Jun 2016

29 Jul 2016

7.30am to 6.00pm Mon - Sat

8 non consecutive weeks between 10 Oct 2016 and 04 May 2017 as shown in the programme in Appendix A

19 May 2017

8 Jun 2017

7am to 7pm Mon - Sat

and Shotcrete and Strip Drain Installation

31 May 2017

28 Jun 2017

29 Jun 2017

05 Dec 2017

05 Jun 2018

Excavation 1 layer

and Rock Dowel Installation

Excavation 2 layer to bottom

Waterproofing and Tunnel Construction

Waterproofing and tunnel construction

Swanson St to Wolfe St (Ch370490)

01 Dec 2017

Trench Backfilling

Trench backfilling and reinstatement

Swanson St to Wolfe St (Ch370490)

05 Mar 2018

7am to 7pm Mon â€“ Sat

11 Sep 2018

7am to 7pm Mon - Sat

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

* The dates shown in Table 2 are dependent on the Stamford Plaza SSCNVMP being finalised and subsequently agreed to by Auckland Council. If the timeframe for this is delayed then the start of construction will be delayed accordingly. * Up to 5 additional days (which may consist of Saturdays during the period 13 Jun – 5 Aug 2016, or consecutive construction work days immediately following that period) and up to 2 additional weeks may be required as a contingency for the ‘Advanced Utilities Works’ and the ‘Installation of CFA Piles and Installation of Pile Cap’ respectively. Piling, saw cutting and any other activity that produces noise in excess of the Project Noise Criteria (see Table 1) will only be carried out between the hours of 07:30 and 18:00 Monday to Saturday in the area between 20m north of Mills Lane (Point A, shown of Figure 1 above) and 20m south of Swanson Street (Point B, shown of Figure 1 above). Saw cutting, hydro excavation, concrete breaking (if required) and any other activity associated with the prepatory works between Points A and B that produces noise in excess of the Project Noise Criteria will be complete within 40 days as indicated in Table 2. Connectus may continue less noisy activities that comply with the Project Noise Standards, such as completing pavement reinstatement, cable pulling beyond the 40 day period. The piling works on each side of the road will be undertaken in two – three different stages, in order to manage traffic and access into the Stamford site, but the total duration of these different stages will not exceed the specified period as indicated in Table 2. 3.1.1

Equipment

Construction equipment used for each of the above activities is shown in Table 3 with sound pressure level at 5m resulting from individual equipment items. These equipment levels are placeholders. All equipment will be measured operating independently and then actual equipment noise levels and model numbers will be recorded and updated within the table. Figure 2 details the process that will be followed once actual equipment noise levels have been measured. Table 3 Construction Equipment

Construction Activity

Equipment

Utilities relocation, utilities location and exposure

Concrete saw Vacuum Excavation

Installation of CFA piles

Installation of pile cap Removal of existing road surface st

Excavation 1 layer

Excavation 2 to Bottom

Layer

Sound pressure level dB LAeq @ 5m 91 84 88 79 83 84 82 79 91 82 88 84 85 84 79 76 79 86 81 81 Page 9

Connectus Project #: 2665 Client: Auckland Transport

Construction Activity

Waterproofing and tunnel construction

Rock fall protection netting Pre-drilling

Drilling and rock dowel installation

Trench backfilling

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Equipment 6-wheel tipper trucks (10t) Telehandlers Telescopic Crawler Crane Rough terrain scissor lift Mobile concrete pump or Static pump and boom Crane Delivery trucks Excavator mounted drill rig Crane Delivery trucks Angle grinder Excavator-mounted rock breaker Concrete core drill Telehandlers Excavator-mounted drill rig Water bowser Diesel compressor Petrol/diesel generator Crawler crane est 50t Delivery trucks Excavators 5-15t Front end loader Bobcat loader 6-wheel tipper trucks Roller compactors Plate compactors Concrete pump

Sound pressure level dB LAeq @ 5m 76 85 77 84 86 86 81 76 92 81 76 86 90 91 85 92 87 79 71 81 76 79 86 82 76 85 86 84

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Figure 2 Process to follow once actual equipment noise levels have been measured

4 MITIGATION 4.1

NOISE

Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance of staff and guests, loss of concentration, reduction in speech intelligibility and annoyance of cafĂŠ/ restaurant patrons who may then choose to eat elsewhere.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Mitigation is required to meet the Project Noise Standards at the Stamford Plaza Hotel. In addition to the general noise and vibration control measures outlined in Section 7 of the CNV DWP, the specific noise mitigation measures detailed in Table 4 will be implemented. These mitigation measures represent the Best Practicable Option to avoid, remedy or mitigate adverse effects on the Stamford Plaza Property, its guests and/or visitors. The mitigation measures detailed in Table 4 and in Section 7 of the CNV DWP reflect BPO as they represent everything that can practicably be done to mitigate noise at the source. Table 4 Specific Noise Mitigation Measures

Equipment/process

Noise control measures

Concrete cutting

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when:  

Cutting within 300mm of a kerb or canopy structure Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

It is assumed that all concrete can be removed by saw cutting and lifting with an excavator. Concrete breakers will not be used in the vicinity of the Stamford Plaza Hotel unless something is encountered in the ground that cannot be removed by any other method. In this case the smallest breaker capable of completing the task will be used and where practicable the works will be carried out in a mobile acoustic enclosure. Alternatively, muffled breakers will be used.

Vacuum Excavation

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

Piling

The new design has reduced the number of piles within the zone (20m north of Mills Lane to 20m South Of Swanson) on the East side of Albert Street considerably. The original design as presented in the Notice of Requirement hearings used approximately 87 piles. Connectus have been able to reduce this to only 60 piles. The method of piling has also changed from the original design. Piling will now be by Continuous Flight Auger which produces less noise and vibration.

Excavators, bobcats, loaders

Excavators of 15t or less will be used in the vicinity of Stamford Plaza Hotel unless it can be demonstrated by measurement that bigger excavators will meet the noise criteria. Tracks will be greased regularly.

Crane

Straps rather than chains will be used unless a risk assessment deems the use of straps unsafe.

Excavator mounted drilling rig

Localised screening will be used where required. The screens will be positioned to cut line of site between the noisy elements of the drilling rig and locations on the Stamford Plaza façade where the Project Noise Standards would otherwise be exceeded.

Construction Deck

The original construction methodology presented at the Notice of Requirement hearings showed a single deck structure being built across Albert Street in front of Stamford Plaza Hotel. It was proposed that all materials for constructing the tunnel came in and out of this point during the Page 12

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excavation, tunnel construction and backfilling phases. The new design has switched to a continuous deck structure, which has reduced the requirement for plant to be located near Stamford Plaza by at least 50%. Construction vehicles

Tonal reversing alarms will not be used. Broadband alarms will be used instead.

In addition to these measures, noise barriers/hoardings between the work site and the receiver will be used to reduce noise levels. These will be at least 1.8m high during the advanced utilities works and piling and 2m high during the remainder of the works. There will be the ability to increase barrier height during the main trenching works should it be found that items of equipment are significantly noisier than what is authorised by this plan and higher barriers are required to meet the Project Noise Standards. The barriers will have a mass equal to or greater than 10 kg/m2. Panels will be abutted or overlapped to provide a continuous screen with no gaps. It may be acceptable to use a proprietary barrier with a reduced mass providing the required attenuation can be achieved. The contractor will seek approval from the Project Acoustic Specialist before using a proprietary barrier product on site. Indicative location of noise barriers is shown in Figure 3 below. Figure 3 Noise barriers

1.8m noise barriers during advanced utilities works, 2m for remainder

Noise barriers are generally most effective when placed as close to the noise source as possible, and blocking line of sight between the source and receiver. Barriers are therefore most effective for noise sources located at or below ground level, and received at ground floor level. Little reduction is provided for receivers located at Level 3 and above. Table 5 below shows maximum expected noise levels received at each floor level due to installation of CFA piles, with no mitigation and with 1.8m high noise barriers in the location shown in Figure 3 above. The effect of the barriers is also shown in Figure 4. Table 5 Noise levels from CFA piling, with and without noise barriers

Floor level

Noise level, dB LAeq

No barrier

1.8m Barrier

Noise level reduction, dB

Mezzanine

4 Page 13

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

L10

A similar level of noise reduction from noise barriers at each floor can be expected for all other construction activities where the dominant noise source is close to ground level. Different barrier heights (2.4m and 3m) were modelled. Increasing the barrier height had very little effect on the noise levels at the building which reduced by only 1-2 dB. This reduction in noise level would not be perceptible. When considering this limited effect against the structural constraints of increasing the barrier height and the additional cost it is not consider to be practicable to increase the barrier height. Noise levels at the entrance were assessed to determine if installation of a sound lock lobby and/or a revolving door would represent the BPO. Noise levels during piling, which is one of the noisiest activities, are predicted to be 76 dB LAeq at the entrance to the building. This noise level will occur when the piling rig is in the closest location to the entrance and will only be this high for 2-3 pile locations which will take less than a day to complete. At all other pile locations the noise level at the front door will be reduced and will meet the Project Noise Standards. As the Project Noise Standard will be met, other than during a day of piling as indicated above, at the entrance to the hotel, installation of a sound lock lobby or a revolving door is not considered to represent the BPO.

4.2

VIBRATION

Equipment/process

Vibration control measures

Excavator mounted concrete breaker

Concrete breakers will not be used unless something is encountered in the ground that cannot be removed by saw cutting. Should breakers be required a hand held jack hammer rather than an excavator mounted breaker will be used when within 10m of the Stamford Plaza Hotel.

5 PREDICTED NOISE AND VIBRATION LEVELS 5.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of the Stamford Plaza building are shown below in Table 7. These levels correspond to the construction Page 14

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

equipment being located at its nearest position to Stamford Plaza Hotel and assume that all mitigation detailed in Section 7 of the CNV DWP and Section 4.1 of this SSCNVMP has been implemented. The predicted noise levels take into account whether works are being carried out at ground level or below the ground. Table 7 Predicted noise levels

Construction Activity

Project Noise Standard, dB LAeq

Advanced Utilities Works

Predicted noise level with all mitigation measures implemented, dB LAeq 87***

87***

12*

10**

Utilities location and exposure (inside trench area along piling line) Piling Removal of existing road surface st Excavation 1 layer Excavation 2nd Layer to Bottom Drilling â€“ Rock Dowel Waterproofing and tunnel construction Trench backfilling

Project Noise Standards exceedance, dB 12*

*This exceedance is caused by saw cutting **This exceedance is caused by the piling rig *** This level is at the most exposed area of the faĂ§ade, not directly outside a bedroom or conference room. The level outside of the most exposed bedroom/ conference room is 85 dB LAeq

Noise levels will decrease with distance from the noise source such that noise levels at higher floors and at facades not directly exposed to the noise source will be lower than those shown above. This is illustrated in Figure 4 showing noise levels due to CFA pile installation decreasing with increasing floor level.

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Figure 4 CFA Piling - facade noise levels

5.1.1

Internal noise levels

Assuming all mitigation and management measures detailed in Section 7 of the CNV DWP and Section 4.1 of this SSCNVMP are implemented, and an external to internal noise level difference of 35 dB is achieved, internal noise levels are predicted to be 50 dB LAeq or below in all hotel rooms and conference rooms during all construction activities. Façade sound insulation improvements are therefore not considered necessary for the Stamford Plaza Hotel. With regard to the tenant businesses, BaaBaa Black Sheep Café and the Grasshopper restaurant will be most affected as they are located on the Albert Street façade. They are mechanically ventilated with glazed façades. The glass doors are the weak point when considering noise ingress as they do not have seals and there are big gaps around the perimeter of the door. Acoustic seals (bulb seals) should be fitted to the doors. They would not provide much benefit during busy times when the doors are being frequently opened but would provide a noticeable benefit when the doors are shut. When piling or utilities location works are taking place immediately outside construction noise levels will be audible above background and have the potential to annoy staff and customers. Further consultation will take place with these businesses before works begin outside of the building and where possible noisy activities will be scheduled outside of their busiest times. United Travel, Expresso Coffee School, Izakya Kintaro Japenese Restaurant and Thai Massage are located on the Swanson Street façade of the building. Swanson Street is a reasonably steep hill. As these receivers sit below the level of Albert Street the noise barriers detailed in Section 5 of this SSCNVMP will provide a greater level of sound reduction when compared to the tenant businesses located on the Albert Street façade. The noise level at these receivers will meet the Project Noise Standards.

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Connectus Project #: 2665 Client: Auckland Transport

5.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

VIBRATION

Vibration regression curves and emission radii for the vibration sources can be found in Section 5.2 of the CNV DWP. The emission radius is the distance at which vibration levels from an activity/equipment item are expected to exceed the Project Vibration Standards for a particular type of building. For the purposes of assessing vibration, the Stamford Plaza Hotel building is classed as Residential. We note that the emission radii are based on generic data, conservatively sized equipment and ground conditions. Vibration levels from actual equipment at the site may differ and are likely to be less than assumed for the emission radius. The only equipment predicted to exceed the Project Vibration Standards is the excavator mounted concrete breaker if used within 10m of the building. As discussed previously this equipment will only be used if something is found during the works that cannot be removed by saw cutting. If something is found that requires the use of a breaker within 10m of the building, Stamford Plaza will be immediately notified and arrangements will be made to monitor vibration in the most affected part of the building for the duration of the breaker activity in this area. Monitoring will be carried out at the earliest opportunity on site to determine the adjustments for ground conditions and actual equipment items. If the initial vibration monitoring demonstrates that the emission radii are similar to those detailed in Section 5.2 of the CNV DWP the mitigation detailed in Section 4.2 of this SSCNVMP will be implemented. Vibration from construction activities will be continuously measured in the Stamford Plaza building to monitor compliance with the Project Vibration Standards, as detailed in Section 7.2 of this SSCNVMP. Section 8 of this SSCNVMP details the process that will be followed if vibration levels in excess of the Project Vibration Standards are measured.

5.3

COMPLIANCE WITH THE PROJECT NOISE AND VIBRATION STANDARDS

This SSCVNMP authorises piling, saw cutting and concrete breaking (should it be required) to exceed the Project Noise Standards. The maximum predicted exceedance is 12 dB, refer to Table 7. This SSCNVMP authorises concrete breaking (should it be required) to exceed the Project Vibration Amenity Standards when carried out within 10m of the building. All other construction activities are predicted to, and must comply with the Project Noise and Vibration Standards

6 COMMUNICATION AND CONSULTATION Section 9.1 of the CNV DWP details the communication procedures in relation to construction noise and vibration effects. The complaints process is detailed in Section 9.2 of the CNV DWP. The Communication and Consultation Manager for the Project is Alan Howard-Smith, telephone number 021 361158, email alan.howard-smith@hawkins.co.nz. All communications and complaints should be directed to him in the first instance either electronically or via telephone. Alternatively the project will be contactable 24/7 through the freephone number, 0800 CRL TALK (275 8255). All complaints, meetings and actions will be recorded on the CRM database.

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Consultation with the Stamford Plaza Hotel took from mid-November to mid-February. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Mitigation & management measures that will be implemented



Construction of the hotel building



Location of the various tenants and the sensitive spaces in the hotel



Operational hours of the tenants businesses



Operating environment that is required by the hotel and its tenants

Further details of the meetings and comments made by the stakeholders are provided in Table 8.

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Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Table 8 Stakeholder Consultations

Address of Sensitive Receiver 22/26 Albert Street Stamford Plaza Hotel and Tenants:  

United Travel Espresso Coffee School



BaaBaa Black Sheep Café

 

Grasshopper Thai Restaurant



Taiko Japanese Restaurant



Imagine Fitness

Representatives

Issue raised or comment provided

16/11/15

Concern about generator noise

Interviews with all business owners, and hotel General Manager

Concern from some parties about noise in general as they have doors facing onto Swanson Street that remain open. Thai Massage needs quiet conditions to operate

How comment was incorporated (or if not incorporated, reason why not) With the mitigation and management measures detailed in Section 7 of the CNV DWP and Section 4 of this SSCNVMP implemented, works may be audible but will not be at a level that interferes with business operations. Vibration may be felt but will not be at a level that damages the building. Section 7 of this SSCNVMP provides details of the proposed noise and vibration monitoring.

22/26 Albert Street

17/11/15

Noise concerns as door is open all day

Expresso Coffee School

Follow up discussion with business owner and general inspection of façade, ventilation etc

Noise impact on outside seating area

22/26 Albert Street

17/11/15

United Travel

Follow up discussion with business owner and general inspection of façade, ventilation etc

Concerned about noise impacting their operations. They speak to customers all day in person or on the telephone so need reasonably quiet working environment

Noise break-in through the door could be an issue as there is a 1-2cm gap around the perimeter of the door. The landlord is proposing to install some seals to rectify this.

Page 19

With door seals fitted, as currently proposed by the landlord, construction noise will not be at a level that impacts the business operations of this receiver.

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

22/26 Albert Street

20/11/15

Needs a quiet environment for clients

Thai Massage

Follow up discussion with business owner and general inspection of faรงade, ventilation etc

Treatment rooms are adjacent to the faรงade overlooking Swanson Street

22/26 Albert Street

Also concerned about vibration

Meeting with the hotels building engineer

Meeting to determine where the noise and vibration monitoring equipment could be located in the hotel.

22/26 Albert Street

26/02/16

Stamford Plaza Hotel

Meeting with new General Manager

Meeting with the new General Manager to provide an overview of the noise and vibration management plans.

Stamford Plaza Hotel

Concerns raised over the potential noise and vibration impact on hotel guests. Confirmed that the chosen locations for noise and vibration monitoring are acceptable.

Page 20

With the barriers installed as specified in Section 7 of the CNV DWP and Section 4 of this SSCNVMP noise from all construction activities will comply with the Project Noise Standards at this receiver. Vibration is unlikely to be at perceptible levels in this receiver. The monitoring locations detailed in Section 7 of this SSCNVMP are the ones agreed with Stamford Plaza Hotel. With the mitigation and management measures detailed in Section 7 of the CNV DWP and Section 4 of this SSCNVMP implemented internal noise levels are predicted not to trigger the compensation provisions in the Agreement with Stamford Plaza during all construction activities. Vibration may be felt but will not be at a level that damages the building.

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

7 MONITORING In addition to the noise and vibration monitoring detailed in the CNV DWP, noise and vibration from construction activities will be continuously measured to monitor compliance with the Project Noise and Vibration Standards.

7.1

NOISE MONITORING

The location shown in Figure 5 (Level 3 Room 342) has been selected for noise monitoring as it is a laundry storage area, not a room that is used by guests. This location has been agreed with Stamford Plaza Hotel as the equipment will not impede hotel operations. Additional monitoring positions will be utilised, subject to approval by Stamford Plaza, to measure noise in the most exposed locations as work progresses in front of the building. Figure 5 Proposed noise monitoring location

Proposed noise monitoring location

A microphone and ancillary equipment (logger, battery, case) will be set up by a suitably qualified professional in the selected location before the commencement of construction activities. Background noise will be measured prior to construction to determine the contribution of extraneous noise sources such as traffic and building services. Noise levels will be measured continuously in 15 minute intervals for the duration of construction works. Audio may be recorded (with the permission of Stamford Plaza Hotel) along with noise levels to help exclude extraneous sources such as guest conversation, traffic and building services from the results. Noise level data will be downloaded periodically to monitor ongoing compliance with the Project Noise Standards. Noise levels during the 40 consecutive day construction period for the preparatory works will be reported to Stamford Plaza at least every 48 hours. Outside of this period, noise levels will be reported to Stamford Plaza no less than every 7 days. The reports will describe how the noise levels compare to the Project noise Standards.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Simultaneous measurements will be taken 1m from the building faรงade when work commences to determine the level of sound reduction provided by the faรงade in this area. This level will then be used to adjust internal noise levels for comparison with the external Project Noise Standards. Noise levels will also be measured in the ground floor conferencing and lobby/bar areas at critical phases of construction (at the commencement of services location and exposure, CFA piling and rock dowel drilling) to ensure that the noise barriers are providing the required level of noise mitigation in these areas.

7.2

VIBRATION MONITORING

The location shown in Figure 6 has been selected for vibration monitoring as it is at ground floor level in an area not used by staff or guests. This location has been agreed with Stamford Plaza Hotel as the equipment will not impede hotel operations. The proposed monitoring location is representative of the western faรงade of the building where PPV is expected to be highest. Vibration levels will be measured prior to construction to determine the contribution of extraneous vibration sources such as traffic. Additional monitoring positions will be utilised, subject to approval by Stamford Plaza, to measure vibration in the most exposed locations as work progresses in front of the building.

Figure 6 Proposed vibration monitoring location

Proposed vibration monitoring location

Vibration monitoring will also be undertaken at the highest level of the hotel in accordance with the requirements of DIN4150-3 to monitor horizontal motion. Due to the need to ensure the best practicable measures to avoid damage and also manage occupant concerns, vibration levels will be monitored in person when a new activity is undertaken which may produce readily perceptible vibration in the hotel space. Activities that will continue to produce readily perceptible vibration logging results will be reported to Stamford no less thatn every 7 days in Page 22

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

accordance with the requirements of DIN 4150-3. The reports will describe how the vibration levels compare to the Project vibration Standards.

8 CONTINGENCY MEASURES Section 11 of the CNV DWP describes the contingency measures to be implemented in the event that noise and vibration limits are exceeded. A summary of those measures is detailed below. Where any construction activity is predicted and/or measured to exceed the Project Noise Standards or the Project Vibration Standards and is not authorised to do so by this SSCNVMP, see Section 5.3, the following process will be applied: 

Check that the BPO and all relevant management measures have been implemented (refer Section 7 of the CNVMP and Section 4 of this SSCNVMP)



Communication and Consultation Manager to consult with all affected parties, to understand their particular sensitivities, including times, activities and locations. The Communication and Consultation Manager or their representative shall be available 24/7.



Carry out noise and/or vibration monitoring of the construction activity to verify the extent of any adverse effects.



Implement further mitigation and/or contingency measures to avoid significant adverse effects as agreed with the affected party.

In addition to the measures detailed above, where there is an exceedance of the noise and vibration standards set out in Conditions 31, 33 and 34 of the Designation, the Auckland Council Consent Monitoring Officer has the ability to call for an immediate cessation of the work(s) that is giving rise to the exceedance.

8.1

NOISE

If noise monitoring demonstrates non-compliance with the noise limits the following procedures shall be implemented: 

Undertake additional noise measurements, as necessary, to determine the extent of the exceedance. Where additional measurements are required they will be taken immediately.



Discuss additional mitigation options with the Project Manager as soon as the extent of the exceedance has been determined. This may include immediately stopping works.



Implement those additional mitigation options.



Undertake noise measurements within 24 hours of the recommended mitigation measures being implemented to confirm that the mitigation has been effective and the noise limits are now being met.



Preparation of a report recording the findings of the survey and detailing additional mitigation or management options. Copies of the report will be provided to Stamford Plaza, AT, the Project Manager, the Communication and Consultation Manager and the Sustainability Manager within 48 hours of the survey.

Page 23

Connectus Project #: 2665 Client: Auckland Transport

8.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

VIBRATION – BUILDING DAMAGE

If vibration monitoring demonstrates non-compliance with the vibration building damage limits, the construction activity responsible for the exceedance will cease as soon as safe and practicable to do so. A detailed building condition survey will then be undertaken by a suitably qualified engineer at Connectus’ expense. The survey will be carried out as defined in Section 10.4 of the CNV DWP. This building condition survey is in addition to the building condition survey that will be carried out before work begins. If damage has not occurred then that activity can continue provided the measured vibration level is not exceeded further. If minor damage has occurred, such as cosmetic cracks, further mitigation will be applied if practicable. However, the activity can continue provided the measured vibration level is not exceeded further. If moderate or severe damage has occurred and the best practicable option has been implemented, it will be necessary to stop work, if safe to do so, and investigate alternative construction methods. All damage due to construction activities will be repaired within a reasonable timeframe after the construction phase ceases.

8.3

VIBRATION - AMENITY

If vibration monitoring demonstrates non-compliance with the vibration amenity limits the following procedures shall be implemented: 

Undertake additional vibration measurements, as necessary, to determine the extent of the exceedance. Where additional measurements are required they will be taken immediately.



Discuss additional mitigation options with the Project Manager as soon as the extent of the exceedance has been determined. This may include immediately stopping works.



Implement those additional mitigation options.



Undertake vibration measurements within 24 hours of the recommended mitigation measures being implemented to confirm that the mitigation has been effective and the vibration limits are now being met.



9 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

Page 24

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

APPENDIX A: UTILITIES AND PILING PROGRAMME (AS ISSUED TO STAMFORD PLAZA ON 5TH MAY 2016)

Page 25

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001186 Revision: 07, Date: 25 May 2016

Page 26

Auckland City Rail Link In association with:

ENABLING WORKS CONTRACT 2 SITE SPECIFIC CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN: STAMFORD RESIDENCES Separable Portion 1 â€“ Cut and Cover Works Document Ref: CRL-PAT-ENV-CON-PLN-001185 Revision: 09

Final 3rd June 2016

COMMERCIAL IN CONFIDENCE

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DOCUMENT INFORMATION Organisation:

Connectus

Document Title:

Site Specific Construction Noise and Vibration Management Plan: Stamford Residences

Fulcrum Document Number:

CRL-PAT-ENV-CON-PLN-001185

Document based on MMS No:

n/a

Client:

Auckland Transport

Project:

CRL Enabling Works: Contract Two

Location:

Auckland CBD

Project No:

2665

REVISION HISTORY Rev

Date

Details st

Draft for Connectus review

Author

Approver

C. Drewery

C Hind

29/02/16

11/03/16

IPR Comments Addressed

C. Drewery

C Hind

24/03/16

For Stamford Residences Review

C. Drewery

C Hind

31/03/16

For Stamford Residences Review – updated to include initial comments from Stamford Residences

C. Drewery

C Hind

14/04/16

For Stamford Residences Review – updated to include further comments from Stamford Residences

C. Drewery

C Hind

29/04/16

For Stamford Residences Review – updated to include comments from Stamford Residences noise expert

C. Drewery

C Hind

9/05/16

For Stamford Residences Review – updated to include new program for utilities relocation and piling works

C. Drewery

C Hind

10/05/16

Final for Issue

C. Drewery

C Hind

3/06/16

Final

C. Drewery

C Hind

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

Introduction........................................................................................................................7 1.1

Objective

1.2

Site plan

Receivers ..........................................................................................................................8

Activities ............................................................................................................................8 3.2

Vibration

Mitigation ......................................................................................................................... 11 4.1

Noise

4.2

Vibration

4.3

Habitation

4.4

Residual Effects

Predicted Noise and Vibration Levels ............................................................................... 14 5.1

Noise

5.2

vibration

Communication and Consultation..................................................................................... 16

Monitoring ....................................................................................................................... 17

Contingency Measures .................................................................................................... 18

8.1

Noise

8.2

Vibration â€“ Building Damage

Staff................................................................................................................................. 19

Page 6

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

1 INTRODUCTION This is a Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) and forms part of the Construction Noise and Vibration Delivery Work Plan (CNV DWP) for the CRL Contract 2 Enabling Works (the ‘Project’). This SSCNVMP provides specific assessment of construction noise and vibration effects on the Stamford Residences located at 22-26 Albert Street and has been prepared after reviewing the Agreement between Auckland Transport and Stamford Residences dated 19 August 2015. This SSCNVMP should be read in conjunction with the CNV DWP (Document Ref: rd CRL-PAT-ENV-CON-PLN-000903 Revision 6 dated 3 June 2016) as it contains further details of the project, noise criteria, monitoring, general mitigation measures and other information. Where there is inconsistency between the CNV DWP and this SSCNVMP, then the provisions of the SSCNVMP shall prevail. Details of the construction methodology are contained in the Project Construction Environmental Management Plan (CEMP). Acoustic terms are defined in the Acoustic Glossary in the CNV DWP.

1.1

OBJECTIVE

The objective of this SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on Residents1 resulting from construction noise and vibration.

1.2

SITE PLAN

Figure 1 shows the location of the works in relation to the Stamford Residences. Figure 1 Site plan

‘Resident’ means an owner or occupier of part of the Property. ‘Property’ means the property at Levels 12-23, including ancillary areas and common areas owned, used or occupied by the Stamford Residences at 22-26 Albert Street, Auckland Central. Page 7

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

2 RECEIVERS The Stamford Residences occupies the building at 22-26 Albert Street from Level 12 to Level 23. The lower levels of the building are occupied by the Stamford Plaza Hotel. All apartments have mechanical ventilation. The apartments have enclosed balcony areas along the Albert Street faรงade that have openable louvres for ventilation. Table 1 Receiver information

Address

Building use

Stamford Residences 22-26 Albert Street

Residential

Historic / vibration sensitive

Minimum Horizontal Distance to Works, m

Project Noise Criteria dB dB LAeq LAFmax

Project Vibration Criteria, (PPV mm/s)

75*

90*

Project Vibration Criteria (Amenity), (PPV mm/s) 0.3mm/s and 35 dBA (10pm-7am in bedrooms) 1.0 mm/s (7am-10pm in habitable rooms)

Designation Condition 38.4 allows for the Project Vibration Standards to be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place. Based on the building condition surveys and the initial assessments by the structural engineer the building vibration limits could be reduced. However, it is considered prudent to keep the Project Vibration Building Damage Standards to better enable compliance with the Project Vibration Amenity Standards.

3 ACTIVITIES Construction activities which have the potential to give rise to an exceedance of the Project Noise and/ or Vibration Standards (detailed in Section 1 of the CNV DWP) at the Stamford Residences are shown in Table 2 below. Start/end dates and hours of operation are also provided for each area of works. The start and end dates relate to the wider construction works area, it is expected that activities will only generate significant noise and/or vibration in the vicinity of the Stamford Residences for a fraction of the overall activity duration.

Page 8

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

Table 2 Construction activities

Works Phase

Construction Activity

Area of works

Activity Start Date*

Activity End Date*

Hours

Advanced Utilities Works

Utilities relocation

Between Points A and B:

13 Jun 2016

5 Aug 2016

7am to 7pm Mon - Sat

Vector Electricity across Albert Street at Swanson Street and part of the Combined Service Trench Swanson Street to Wyndham Street Albert Street Piling and Capping Beam

Utilities location and exposure along piling line

Between Points A and B:

Installation of CFA piles

Between Points A and B:

20 Jun 2016

29 Jul 2016

Mon â€“ Sat

Both sides of Albert Street

7.30am to 6.00pm

10 non consecutive weeks between 10 Oct 2016 and 04 May 2017

Installation of pile cap Excavation and Spoil Handling

Removal of existing road surface

Swanson St to Wolfe St (Ch370490)

19 May 2017

8 June 2017

7am to 7pm Mon - Sat

and Excavation 1st layer

31 May 2017

28 June 2017

Rock Dowel Installation

Excavation 2nd layer to bottom

29 June 2017

5 Dec 2017

Waterproofing and Tunnel Construction

Waterproofing and tunnel construction

Swanson St to Wolfe St (Ch370490)

1 Dec 2017

5 June 2018

Trench Backfilling

Trench backfilling and reinstatement

Swanson St to Wolfe St (Ch370490)

5 Mar 2018

Shotcrete and Strip Drain Installation and

7am to 7pm Mon â€“ Sat

11 Sep 2018

7am to 7pm Mon - Sat

* The dates shown in Table 2 are dependent on the Stamford Plaza SSCNVMP being finalised and subsequently agreed to by Auckland Council. If the timeframe for this is delayed then the start of construction will be delayed accordingly. Auckland Transport will use best endeavours to provide written notice six months prior to any predicted exceedances of the Project Noise and/or Vibration Standards and otherwise as soon as reasonably practicable. This notice shall include the start and end date of the period for which exceedances are predicted to arise from: Page 9

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

(i)

Preparatory activities (including road cutting);

(ii)

Piling on the western side of the CRL trench; and

(iii)

Piling on the eastern side of the CRL trench.

Piling, saw cutting and any other activity that produces the same noise level as piling will only be carried out between the hours of 07:30 and 18:00 Monday to Saturday in the area between 20m north of Mills Lane (Point A) and 20m south of Swanson Street (Point B). Those components of the preparatory works between Points A and B that exceed the Project Noise and/or Vibration Standards will be completed over a total of 40 days. Connectus may continue activities that do not exceed the Project Noise and/or Vibration Standards, such as completing pavement reinstatement and cable pulling, beyond the 40 day period. Between Points A and B piling will take no longer than 6 weeks on each side of the road. The piling works on each side of the road will be undertaken in two â€“ three different stages, in order to manage traffic and access into the Stamford site, but the total duration of these different stages will not exceed the specified 6 weeks on each side of the road. 3.1.1

Equipment

Construction Activity

Equipment

Utilities relocation, utilities location and exposure

Concrete saw Vacuum Excavation

Installation of CFA piles

Installation of pile cap Removal of existing road surface st

Excavation 1 layer

Excavation 2 to Bottom

Layer

Waterproofing and tunnel construction

Rock fall protection

Soilmec Hydraulic Rotary Rig (est SR80) Excavator (est 15t) Concrete truck Mecbo tracked Concrete Pump Crane (40t) Excavator (est 15t) Concrete saw or breaker Crane (40t) Road planer / milling machine Excavator 20t 6-wheel tipper trucks (10t) Excavator 20t Small excavator (5t â€“ 14t) 6-wheel tipper trucks (10t) Excavator 14t Front end wheel loader Crawler crane with clamshell bucket (80t) long reach excavator 6-wheel tipper trucks (10t) Telehandlers Telescopic Crawler Crane Rough terrain scissor lift Mobile concrete pump or Static pump and boom Crane Delivery trucks Excavator mounted drill rig

Sound pressure level dB LAeq @ 5m 91 84 88 79 83 84 82 79 91 82 88 84 85 84 79 76 79 86 81 81 76 85 77 84 86 86 81 76 92 Page 10

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

Construction Activity

Equipment

netting

Crane Delivery trucks Angle grinder Excavator-mounted rock breaker Concrete core drill Telehandlers Excavator-mounted drill rig Water bowser Diesel compressor Petrol/diesel generator Crawler crane est 50t Delivery trucks Excavators 5-15t Front end loader Bobcat loader 6-wheel tipper trucks Roller compactors Plate compactors Concrete pump

Pre-drilling

Drilling and rock dowel installation

Trench backfilling

3.2

Sound pressure level dB LAeq @ 5m 81 76 86 90 91 85 92 87 79 71 81 76 79 86 82 76 85 86 84

VIBRATION

Construction activities and equipment which are expected to generate significant vibration levels in the vicinity of Stamford Residences are shown in Table 4 along with start and end dates, and hours of operation. The start and end dates relate to the wider construction works area, and it is expected that activities will only generate significant vibration in the vicinity of the Stamford Residences for a fraction of the overall activity duration. Table 4 Vibration sources

Works Phase

Equipment

Activity Start Date

Albert Street Piling and Capping Beam

Soilmec Hydraulic Rotary Rig (est SR80)

6 Dec 2016 to 16 Dec 2016

7.30am to 6.00pm

28 Mar 2017 to 12 Apr 2017

Mon - Sat

Trench Backfilling

Roller compactors

5 Mar 2018

7am to 7pm

Plate compactors

Activity End Date

11 Sep 2018

Hours

Mon - Sat

4 MITIGATION 4.1

NOISE

Specific effects on this receiver that could result from exceedances of the noise criteria include the annoyance and disturbance of residents. Mitigation is required to meet the noise criteria at the Stamford Residences. In addition to the general noise and vibration control measures outlined in Section 7 of the CNV DWP, the specific noise mitigation measures detailed in Table 5 will be implemented. These mitigation measures represent the Best Practicable Option to avoid, remedy or mitigate adverse effects on the Stamford Residences. Page 11

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

Table 5 Specific Noise Mitigation Measures

Equipment/process

Noise control measures

Concrete cutting

Use a mobile acoustic enclosure where practicable. Use of a mobile acoustic enclosure may not be practicable when:  

Cutting within 300mm of a kerb or canopy structure Saw cuts need to be made around an obstruction that protrudes above surface level, such as a light pole or street sign.



The road saw needs to be manoeuvred around in a tight space that would be obstructed by the acoustic enclosure

When use of a mobile acoustic enclosure is not practicable works will be planned so that saw cutting directly in front of a receiver is completed within a total of two working days. The building owner will be contacted at least one week prior to this occurring to see if the works can be scheduled for a time that least impacts them. Concrete breaking

It is assumed that all concrete can be removed by saw cutting and lifting with an excavator. Concrete breakers will not be used in the vicinity of the Stamford Residences unless something is encountered in the ground that cannot be removed by any other method. In this case the smallest breaker capable of completing the task will be used and where practicable the works will be carried out in a mobile acoustic enclosure.

Vacuum Excavation

Locate the vehicle so the pump is facing away from the closest noise sensitive properties

Piling

Excavators, bobcats, loaders

Crane

Straps rather than chains will be used unless a risk assessment deems the use of straps unsafe.

Excavator mounted drilling rig

Localised screening will be used where required. The screens will be positioned to cut line of site between the noisy elements of the drilling rig and the Stamford Residences.

Construction Deck

The original construction methodology presented at the Notice of Requirement hearings showed a single deck structure being built across Albert Street in front of Stamford Residences. It was proposed that all materials for constructing the tunnel came in and out of this point during the excavation, tunnel construction and backfilling phases. The new design has switched to a continuous deck structure, which has reduced the requirement for plant to be located near Stamford Residences by at least 50%.

Construction vehicles, plant and equipment

Tonal alarms will not be used during the movement of construction vehicles, plant and equipment. Broadband alarms will be used instead.

Page 12

Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

Noise barriers/hoardings will be installed around the work site but they will provide no attenuation to the Stamford Residences which begin at Level 12. Little reduction is provided for receivers located at Level 3 and above.

4.2

VIBRATION

Equipment/process

Vibration control measures

Excavator mounted rock breaker

4.3

HABITATION

If notwithstanding any mitigation measures set out above and additional to the contingency measures set out in Section 8 of this SSCNVMP, the noise and/or vibration effects on the Residents exceeds the levels set out in Table 7 so as to unreasonably interfere with the Residents habitation and/or renders the relevant space uninhabitable, then temporary relocation and/or the payment of the cost of the temporary relocation shall be offered to the Residents concerned.

Table 7 Internal level at which noise and vibration effects may unreasonably interfere with habitation and/or render the relevant space uninhabitable

Noise

Vibration

Daytime (7am to 7pm) – 60 dB LAeq(T)

Daytime (7am to 10pm) – 2mm/s PPV

Evening (7pm to 10pm) - 50 dB LAeq(T)

Night time (10pm to 7am) – 0.6mm/s PPV

Night time (10pm to 7am) – 40 dB LAeq(T) and 45 dB LAFmax

4.4

RESIDUAL EFFECTS

The intention is that after taking into account the mitigation measures set out above, together with other provisions of this SSCNVMP that (unless Section 4.3 applies) the residual effects of the construction are not likely to cause significant disruption to the activities of the Residents.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

5 PREDICTED NOISE AND VIBRATION LEVELS 5.1

NOISE

The predicted worst case noise levels from each activity received at the most exposed part of the Stamford Residences (level 12) are shown below in Table 8. These levels correspond to the construction equipment being located at its nearest position relative to the receiver and assume that all mitigation detailed in Section 7 of the CNV DWP and Section 4.1 of this SSCNVMP has been implemented. The predicted noise levels take into account whether works are being carried out at ground level or below the ground. Table 8 Predicted noise levels

Construction Activity

Project Noise Standard, dB LAeq

Predicted noise level with all mitigation measures implemented, dB LAeq

Project Noise Standards exceedance, dB

Vector Electricity across Albert Street at Swanson Street

Utilities location and exposure (inside trench area) Piling

5**

Removal of existing road surface Excavation 1st layer

Excavation 2nd Layer to Bottom Drilling â€“ Rock Dowel

Waterproofing and tunnel construction Trench backfilling

*This exceedance is caused by saw cutting and will occur during the 40 day period for preparatory works. **This exceedance is caused by the piling rig and will occur during the 12 week period for piling works.

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Connectus Project #: 2665 Client: Auckland Transport

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

Figure 2 CFA Piling - facade noise levels

5.1.1

Internal noise levels

Apartment Environment The faรงade of the building is mostly glazed and all apartments are mechanically ventilated. The apartments have enclosed balcony areas along the Albert Street faรงade that have openable louvres for ventilation. An external to internal noise level difference of 35 dB is predicted in all areas except for the enclosed balconies where the level difference is predicted to be 15-20 dB when the louvres are open. Assuming all mitigation and management measures detailed in Section 7 of the CNV DWP and Section 4.1 of this SSCNVMP are implemented, and an external to internal noise level difference of 35 dB is achieved, internal noise levels noise levels in the most exposed apartments on Level 12 may reach 50 dB LAeq when utilities works are being carried out directly in front of the building on the east side of Albert Street. All other activities associated with the Project will be result in noise levels of 45 dB LAeq or below. Balcony Environment When utilities works and piling are immediately outside of the building noise levels in the enclosed balcony areas of the most exposed apartments on Level 12 may reach 65 dB LAeq. The works in this area will be of a limited duration. The most effective way to reduce noise levels further will be to close the louvres. With the louvres closed the noise levels in the enclosed balcony areas of the most exposed apartments on Level 12 may reach 55 - 60 dB LAeq. Faรงade sound insulation improvements are not considered necessary for the Stamford Residences.

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5.2

Site Specific Construction Noise and Vibration Management Plan Doc. No. CRL-PAT-ENV-CON-PLN-001185 rd Revision: 09, Date: 3 June 2016

VIBRATION

Vibration regression curves and emission radii for the vibration sources can be found in Section 5.2 of the CNV DWP. The emission radius is the distance at which vibration levels from an activity/equipment item are expected to exceed the Project Vibration Standards for a particular type of building. For the purposes of assessing vibration, the Stamford Residences building is classed as Residential. We note that the emission radii are based on generic data, conservatively sized equipment and ground conditions. Vibration levels from actual equipment at the site may differ and are likely to be less than assumed for the emission radius. The only equipment predicted to exceed the Project Vibration Standards is the excavator mounted concrete breaker if used within 10m of the building. As discussed previously this equipment will only be used if something is found during the works that cannot be removed by saw cutting. Monitoring will be carried out at the earliest opportunity on site to determine the adjustments for ground conditions and actual equipment items. If the initial vibration monitoring demonstrates that the emission radii are similar to those detailed in Section 5.2 of the CNV DWP the mitigation detailed in Section 4.2 of this SSCNVMP will be implemented. Vibration from construction activities will be continuously measured in the Stamford Residences building to monitor compliance with the Project Vibration Standards, as detailed in Section 7 of this SSCNVMP. Section 8 of this SSCNVMP details the process that will be followed if vibration levels in excess of the Project Vibration Standards are measured.

6 COMMUNICATION AND CONSULTATION Section 9.1 of the CNV DWP details the communication procedures in relation to construction noise and vibration effects. The Communication and Consultation Manager for the Project is Alan HowardSmith, telephone number 021 361158. All communications and complaints should be directed to him in the first instance. Alternatively the project will be contactable 24/7 through the freephone number, 0800 CRL TALK (275 8255). th

Consultation with the Stamford Residences took place on 17 November 2015. The building manager and representatives of the residents were present. Topics that were covered included: 

Sequencing of construction activities



Likely equipment and associated noise and vibration levels



Mitigation & management measures that will be implemented



Construction of the building

The residents representatives raised general concerns about noise and vibration impacts although they were pleased that the predicted noise and vibration levels are lower than indicated during the NoR process. They were also pleased that the piling method is CFA rather than driven piles which they had been told were necessary. th

A further meeting was held with representatives of Stamford Residences on `18 February 2016 to discuss monitoring requirements and suitable locations for noise and vibration monitoring.

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7 MONITORING Section 10 of the CNV DWP provides details of the noise and vibration monitoring procedure that will be implemented for the duration of the Project. It includes details of monitoring that will be conducted in response to complaints. In addition to the noise and vibration monitoring detailed in the CNV DWP, noise and vibration levels from construction activities in the area between 20m north of Mills Lane and 20m south of Swanson Street will be continuously monitored to inform assessment of compliance with the noise and vibration standards set out in Conditions 31, 33 and 34 of the Designation. Automated noise and vibration loggers will be located at positions that will represent the noise and vibration level in the relevant space for the relevant limits. A suitably qualified professional will set up the noise and vibration loggers and will be responsible for reviewing/ assessing the data from the loggers for the duration of the works. The location shown in Figure 3 (Level 12 Lift Lobby) has been selected for noise monitoring as it is on the most exposed faรงade of the building. This location has been agreed with Stamford Residences as the equipment will not impede residents. Alternative monitoring positions may be utilised subject to approval by Stamford Residences. A microphone and ancillary equipment (logger, battery, case) will be set up in the selected location before the commencement of construction activities in the area between 20m north of Mills Lane and 20m south of Swanson Street. Background noise will be measured prior to construction to determine the contribution of extraneous noise sources such as traffic and building services. Noise levels will be measured continuously in 15 minute intervals for the duration of construction works in the area between 20m north of Mills Lane and 20m south of Swanson Street. Audio may be recorded (with the permission of Stamford Residences) along with noise levels to help exclude extraneous sources such as conversation, traffic and building services from the results. Simultaneous measurements will be taken 1m from the building faรงade when work commences to determine the level of sound reduction provided by the faรงade in this area. This level will then be used to adjust internal noise levels for comparison with the external Project Noise Standards. Vibration monitoring will be conducted in a similar location but at ground floor level. The selected location is representative of the western faรงade of the building where PPV is expected to be highest. This location has been agreed with Stamford Residences as the equipment will not impede residents. Alternative monitoring positions may be utilised subject to approval by Stamford Residences. Vibration monitoring will also be carried out at the top floor of the Residences to check compliance with the Project Vibration Standards. This monitoring will be carried out during works that are predicted to generate the highest levels of vibration. The duration and frequency of monitoring on the top floor level will be determined by the initial measurement results.

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Figure 3 Proposed noise and vibration monitoring location

Proposed noise and vibration monitoring location

Noise and vibration level data will be downloaded periodically to monitor ongoing compliance with the Project Noise Standards. Noise and vibration levels during the advanced utilities works and the preparatory works for piling will be reported to Stamford Residences at least every 48 hours. Outside of that period, noise and vibration levels will be reported to Stamford Residences no less than every 7 days. The reports will detail how the noise and vibration levels compare to the Project Noise and Vibration Standards.

8 CONTINGENCY MEASURES Section 11 of the CNV DWP describes the contingency measures to be implemented in the event that the Project Noise and Vibration standards are exceeded. A summary of those measures is detailed below. Where any construction activity is measured to exceed the Project Construction Noise or Vibration Standards the following process will be applied: 

Check that the BPO and all relevant management measures have been implemented (refer Section 7 of the CNVMP and Section 4 of this SSCNVMP)



Carry out noise and/or vibration monitoring of the construction activity to verify the extent of any adverse effects.



Implement further mitigation and/or contingency measures to avoid significant adverse effects as agreed with the affected party.

In addition to the measures detailed above, where there is an exceedance of the noise and vibration standards set out in Conditions 31, 33 and 34 of the Designation, the Auckland Council Consent

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Monitoring Officer has the ability to call for an immediate cessation of the work(s) that is giving rise to the exceedance.

8.1

NOISE

If noise monitoring demonstrates non-compliance with the Project Noise Standards the following procedures shall be implemented:

8.2



Undertake additional noise measurements, as necessary, to determine the extent of the exceedance. Where additional measurements are required they will be taken immediately.



Discuss additional mitigation options with the Project Manager as soon as the extent of the exceedance has been determined. This may include immediately stopping works.



Undertake noise measurements within 24 hours of the recommended mitigation measures being implemented to confirm that the mitigation has been effective and the noise limits are now being met.



Preparation of a report recording the findings of the survey and detailing additional mitigation or management options. Copies of the report will be provided to Stamford Residences, AT, the Project Manager, Communication and Consultation Manager and Sustainability Manager within 48 hours of the survey.

VIBRATION – BUILDING DAMAGE

If vibration monitoring demonstrates non-compliance with the vibration building damage limits, the construction activity responsible for the exceedance will cease as soon as safe and practicable to do so. A detailed building condition survey will then be undertaken by a suitably qualified engineer. The survey will be carried out as defined in Section 10.4 of the CNV DWP. This building condition survey is in addition to the building condition survey that will be carried out before work begins. If damage has not occurred then that activity can continue provided the measured vibration level is not exceeded further. If minor damage has occurred, such as cosmetic cracks, further mitigation will be applied if practicable. However, the activity can continue provided the measured vibration level is not exceeded further. If moderate or severe damage has occurred and the best practicable option has been implemented, it will be necessary to stop work, if safe to do so, and investigate alternative construction methods. All damage due to construction activities will be repaired within a reasonable timeframe after the construction phase ceases.

9 STAFF Before working on these activities all staff will receive training in accordance with Section 7.2 of the CNV DWP and will read and comply with this SSCNVMP.

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