Issuu

City Rail Link In association with:

REFERENCE DESIGN Construction Noise and Vibration Delivery Work Plan

Document Ref: CRL-MTE-RME-000-RPT-0122 Revision: 04

24 January 2019

INTERNAL WORKING DOCUMENT COMMERCIAL IN CONFIDENCE

84 Symonds Street PO Box 5811 Wellesley Street Auckland 1141 New Zealand T: +64 9 379 7822 F: +64 9 309 3540 www.marshallday.com

Project:

Mt Eden Demolition

Prepared for:

City Rail Link Limited PO Box 105777 Auckland 1143

Attention:

Helen Mclean

Report No.:

Rp 001 20180245

Disclaimer Reports produced by Marshall Day Acoustics Limited are based on a specific scope, conditions and limitations, as agreed between Marshall Day Acoustics and the Client. Information and/or report(s) prepared by Marshall Day Acoustics may not be suitable for uses other than the specific project. No parties other than the Client should use any information and/or report(s) without first conferring with Marshall Day Acoustics. The advice given herein is for acoustic purposes only. Relevant authorities and experts should be consulted with regard to compliance with regulations or requirements governing areas other than acoustics. Copyright The concepts and information contained in this document are the property of Marshall Day Acoustics Limited. Use or copying of this document in whole or in part without the written permission of Marshall Day Acoustics constitutes an infringement of copyright. Information shall not be assigned to a third party without prior consent.

Document Control Status:

Rev:

Comments

Date:

Author:

Reviewer:

Draft

Draft for team review

19 Sep 2018

Micky Yang

Craig Fitzgerald

Draft

R01

Revised methodology

2 Nov 2018

Micky Yang

Craig Fitzgerald

Draft

R02

CRLL review

27 Nov 2018

Micky Yang

Craig Fitzgerald

Draft

R03

CLG feedback and ISCA

12 Dec 2018

Craig Fitzgerald

Final

R04

Independent review

24 Jan 2019

Micky Yang

Craig Fitzgerald

Cover Photo: Creative Agency 514-806-1644

TABLE OF CONTENTS 1.0

INTRODUCTION .......................................................................................................................................... 5

2.0

PROJECT DESCRIPTION ............................................................................................................................... 5

2.1

City Rail Link ................................................................................................................................................ 5

2.2

Advance Works Project .............................................................................................................................. 5

2.3

Overview ..................................................................................................................................................... 6

2.4

Programme ................................................................................................................................................. 7

2.5

Receivers ..................................................................................................................................................... 7

2.6

Key Personnel ............................................................................................................................................. 8

3.0

PERFORMANCE STANDARDS ..................................................................................................................... 9

3.1

Noise ............................................................................................................................................................ 9

3.2

Vibration .................................................................................................................................................... 10

3.3

MediaWorks.............................................................................................................................................. 11

4.0

PREDICTED CONSTRUCTION NOISE AND VIBRATION LEVELS ............................................................... 11

4.1

Noise .......................................................................................................................................................... 11

4.2

Vibration .................................................................................................................................................... 12

5.0

MITIGATION AND MANAGEMENT .......................................................................................................... 12

5.1

Training ...................................................................................................................................................... 12

5.2

Construction Hours................................................................................................................................... 12

5.3

Mechanical Plant Selection ...................................................................................................................... 13

5.4

General Mitigation Measures .................................................................................................................. 13

5.5

Noise Barriers ............................................................................................................................................ 14

5.6

Concrete Cutting ....................................................................................................................................... 14

5.7

Concrete Breaking .................................................................................................................................... 14

6.0

COMMUNICATION ................................................................................................................................... 15

6.1

Communication Overview ....................................................................................................................... 15

6.2

Complaints Response ............................................................................................................................... 15

7.0

MONITORING ............................................................................................................................................ 16

7.1

Noise .......................................................................................................................................................... 16

7.2

Vibration .................................................................................................................................................... 18

8.0

AFFECTED PARTIES ................................................................................................................................... 20

8.1

Airborne Noise .......................................................................................................................................... 20

8.2

Management of Adverse Effects ............................................................................................................. 21

9.0

CNV DWP REVIEW AND UPDATING (INCLUDING SSCNMP AND SSCNMP) ......................................... 21

APPENDIX A GLOSSARY OF TERMINOLOGY APPENDIX B NOISE LEVEL PREDICTIONS APPENDIX C SITE SPECIFIC MANAGEMENT PLANS APPENDIX D COMMUNICATIONS RECORDS APPENDIX E RELEVANT CONDITIONS APPENDIX F ISCA REQUIREMENTS

1.0

INTRODUCTION As part of the City Rail Link (CRL) works, a large number of buildings are required to be removed at the Mt Eden construction support area site prior to construction of the CRL main works. Demolition may generate a range of construction related effects. This Construction Noise and Vibration Delivery Work Plan (CNV DWP) has been prepared to manage the adverse noise and vibration effects associated with the demolition activities at the Mt Eden construction support area. This CNV DWP is required under Condition 36 of the CRL designation. The objective of this CNV DWP is to provide for the development and implementation of the identified best practicable option to avoid, remedy or mitigate the adverse effects on receivers of noise and vibration resulting from the demolition works. The construction activities are subject to project-specific noise and vibration performance standards. Where compliance cannot be achieved, site specific management plans will be implemented. Site Specific Construction Noise Management Plans (SSCNMP) and Site Specific Construction Vibration Management Plans (SSCVMP) are required under Conditions 37, 38, 39 and 40 of the CRL designation to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from noise or vibration that does not comply with the Project Noise and Vibration Standards. This CNV DWP is a live document that will be reviewed and updated during the Project to reflect material changes. Any such changes to this CNV DWP must be submitted to Auckland Council for review at least 10 working days prior to any on-site activity reliant upon the change commencing. A formal review process is described in Section 9.0. It is noted that SSCNMP and SSCVMP documents will not be completed until the Project commences, allowing for finalisation of the construction methods and monitoring of noise and vibration levels. Potentially affected parties have been identified in this DWP and an outline SSCNMP or SSCVMP for each is contained in Appendix C. CRLL is seeking ISCA (infrastructure Sustainability Council of Australia) IS (infrastructure Sustainability) Rating for the whole project lifecycle where the requirements as per ISCA CRL IS Technical Manual â€“ Mahi Rauora Aratohu - Version 1.2 are essential to achieve the Projectâ€™s sustainability goal (Reference to CRLL minimum requirements - Appendices 10, 23 and 24 of the contract documents). The IS rating requirements that relate directly to this CNV DWP are included in Appendix F. which need to be reviewed, amended (as and if needed) and confirmed as the project proceeds and prior to commencing works to meet the target levels set for the project and agreed on with ISCA and CRLL. A glossary of terminology is included in Appendix A.

2.0

PROJECT DESCRIPTION

2.1

City Rail Link The CRL project comprises the construction, operation and maintenance of a 3.4km underground passenger railway, running between Britomart Station and the North Auckland Rail Line (NAL) near Mt Eden Station. CRL Enabling Works commenced in December 2015 and the procurement of the main works contract (C3 Alliance) is being progressed with contract award likely in the first quarter of 2019. To allow works to commence as soon as possible upon award of the C3 Alliance, City Rail Link Limited (CRLL) are obtaining the necessary authorisations for demolition of buildings in the Mount Eden construction support area (CSA) and active construction zone (ACZ).

2.2

Advance Works Project The Project is being undertaken in accordance with CRL Designation 2500-6 confirmed in November 2015, and the Aotea Station to North Auckland Line (A2NAL) suite of resource consents approved in November 2016. The conditions of these authorisations require the preparation of an Outline Plan

(OP), Delivery Work Plans (DWP) and Management Plans (MP). This CNV DWP has been prepared in accordance with the CRL designation and resource consent conditions and identified in the hierarchy of documentation illustrated in Figure 1. Figure 1 CRL Outline Plan Contents

2.3

Overview The buildings and structures are to be demolished on 39 sites identified in Figure 2 overleaf. They are within CRL designation 2500-61 and will be demolished prior to the main CRL construction works commencing. The properties included in the Project area were purchased by Auckland Transport for the purposes of the CRL Project and are currently under CRLLâ€™s management. Most of the properties to be demolished are tenanted as of October 2018 with the remainder unoccupied. CRLL plan to commence the process of vacating the properties towards the end of 2018 and early 2019 to ensure sites are vacant in reasonable time ahead of the planned disconnection of services. Demolition will be undertaken in a staged manner; the order of which is to be confirmed by the C3 Alliance. Demolition has the potential to produce high levels of vibration, generally from one-off events, such as dropping of concrete or other heavy items. The buildings to be removed are generally low rise, with concrete block walls and/or timber or steel framing, and as such, high vibration events will largely be avoided. However residual vibration will be avoided by nibbling concrete and lowering the structure in parts rather than pulling it down in large panels. The demolition works will remove all buildings and structures to ground level including their foundations. Therefore, concrete cutting and/or concrete breaking may be required to break up large concrete pieces into smaller pieces to enable them to be transported offsite for further processing. Some sites will retain basement walls/foundations to support site stability, the road and footpaths, and to support future CRL main works. There will be no works in the road. A soft strip of salvageable materials will be carried out where possible. All demolition material will be removed from the Project area and disposed of at approved facilities.

Auckland Council Unitary Plan (Operative in Part) CRL designation reference.

Figure 2: CRL Mt Eden active construction zone and construction support area

2.4

Programme South Pacific Timber (21 Ruru Street) will demobilise their operations and relocate their buildings over the Christmas / New Year period 2018 / 2019. Demolition works for the remaining buildings will begin in June 2019. With some overlap between each stage, it is expected that total duration will span between 4 – 5 months. Normal construction hours will be 0700 – 1800 hrs, Monday to Friday and 0700 – 1400 hrs on Saturdays. Further detail on construction hours are set out in Section 5.2, including further constraints on road cutting and concrete breaking activities. The demolition sequence for a typical site is summarised as follows and detailed in the CEMP: 1. Soft strip buildings (1 week) 2. Dismantle building structure (2 weeks) 3. Cut and/or breakup foundations if required (1 week) 4. Clear site (1 week)

2.5

Receivers Nearby receivers are identified in Figure 3 overleaf. Commercial/industrial buildings are highlighted purple and residential buildings are highlighted yellow. Receivers that are identified in the Consent Conditions or require a SSCNVMP have been labelled.

Figure 3: Receivers

2.6

Key Personnel This CNV DWP has been prepared by Micky Yang and Craig Fitzgerald from Marshall Day Acoustics, where the latter is a Member of the Acoustical Society of New Zealand (MASNZ). The key personnel responsible for this CNV DWP are detailed in Table 1. The Noise and Vibration Monitoring Manager will be responsible for implementing this CNV DWP. The Monitoring Manager will receive suitable training from the Specialist Noise and Vibration Advisor. Table 1: Key Personnel Contact Information Role

Name

Organisation

Phone

Construction Manager

TBC

Communications Manager

TBC

Noise & Vibration Monitoring Manager

TBC

Specialist Noise & Vibration Advisor

TBC

Compliance and Monitoring Officer

Tim Oâ€™Grady

Auckland Council

09 301 0101 021 834 584

timothy.ogrady@aucklandcouncil.govt.nz

3.0

PERFORMANCE STANDARDS

3.1

Noise

3.1.1 CRL Designation Conditions The relevant Project Construction Noise Standards in CRL designation Condition 31 are summarised in Table 2 below. Rock blasting is not required, so Condition 32 is not relevant. Construction noise shall be measured and assessed in accordance with the provisions of New Zealand Standard NZS 6803:1999 “Acoustics - Construction Noise”. These noise limits apply at 1m from the most exposed façade of a receiver. If any construction activity cannot practicably comply with these limits, it must be mitigated as far as practicable using the measures outlined in this CNV DWP. Table 2: CRL Designation Condition 31.1 - Construction Noise Limits relating to CRL Designation 2500-6 Receiver Type

Monday to Saturday

Sundays and Public Holidays

At all other times

0700 – 2200

2200 – 0700

Occupied commercial and industrial buildings (including offices)

75 dB LAeq

Sensitive Noise and Vibration Receivers (excluding offices)

75 dB LAeq

60 dB LAeq

90 dB LAFmax

75 dB LAFmax

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

35 dB LAeq in sleeping areas

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

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

3.1.2 Site Specific Construction Noise Management Plans Any predicted or measured exceedance from activities occurring in the CRL designation must have a SSCNMP in accordance with CRL designation Condition 31, except with reference to Condition 37.2 where the exceedance is less than 5 decibels and does not exceed: •

0700 – 2200: 1 period of up to 2 consecutive weeks in any 2 months; or

•

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 (refer Section 7.1). The objective of a SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate adverse effects on a receiver resulting from construction noise that does not comply with CRL designation Condition 31. SSCNMPs shall identify the matters outlined in CRL designation Condition 37 (Appendix E), summarised as follows: •

The relevant activity, its timing, duration and predicted magnitude of exceedance (refer Section 4.1 of this DWP);

•

A summary of the communication and consultation undertaken with the receiver (refer Appendix D of this DWP); and

•

The specific methods or measures employed to mitigate the noise effects (refer Section 5.0 of this DWP).

A site specific plan may address both construction noise and vibration, in which case it would be a SSCNVMP. Site specific management plans are included in Appendix C.

3.2

Vibration

3.2.1 Building Damage The relevant Construction Vibration Project Standards related to building damage in CRL designation Condition 33 are summarised in Table 3. Note that there are no heritage or sensitive structures identified near the demolition sites. Construction vibration shall be measured and assessed in accordance with German Standard DIN 4150-3:1999. If any construction activity cannot practicably comply with these limits, it must be mitigated as far as practicable using the measures outlined in this CNV DWP. Table 3: Project Construction Vibration Limits (Building Damage) Short-term (transient) vibration2

Type of Structure

Long-term (continuous) vibration

PPV at the foundation at a frequency of

PPV at PPV at horizontal horizontal plane plane of highest floor 50 – 100 Hz of highest floor

1 – 10 Hz

10 – 50 Hz

(mm/s)

Commercial/Industrial

20 – 40

40 – 50

Residential/School

5 – 15

15 – 20

3.2.2 Amenity The relevant Construction Vibration Project Standards related to amenity are contained in CRL designation Condition 34.2. The following limits apply in response to a complaint from a building occupant: •

1mm/s as measured on the floor of the receiving room for residentially occupied habitable rooms between 0700 and 2200 hrs; and

•

2mm/s as measured on the floor of the receiving room for retail and office spaces (including work areas and meeting rooms) between 0700 and 2200 hrs.

3.2.3 Site Specific Construction Vibration Management Plans The objective of a SSCVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from construction vibration that does not comply with CRL designation Conditions 33 or 34, or in response to other concerns or complaints in accordance with CRL designation Condition 17. SSCVMPs shall identify the matters outlined in CRL designation Condition 38 (Appendix E), summarised as follows:

•

The relevant activity, its timing, duration and predicted magnitude of exceedance (refer to Section 0 of this DWP);

•

A summary of the communication and consultation undertaken with the receiver (refer Appendix D of this DWP); and

•

Site specific vibration criteria, methods or measures that addresses the issue(s) of concern (i.e. building damage, amenity or sensitive equipment).

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.

A site specific plan may address both noise and vibration, in which case it would be a SSCNVMP. Project site specific management plans are included in Appendix C.

3.3

MediaWorks MediaWorks is a Notable Receiver, with specific noise and vibration requirements contained in Conditions 16, 35, 39 and 40. A SSCNVMP for MediaWorks is required by Condition 40 and is included in Appendix C1. Mitigation, management, communication and consultation protocols applying to the MediaWorks buildings (excluding Studio 1), are included in this CNV DWP. However, Studio 1 specific performance standards, predicted levels and monitoring requirements are contained in Appendix C1.

4.0

PREDICTED CONSTRUCTION NOISE AND VIBRATION LEVELS

4.1

Noise Indicative unmitigated sound levels for the proposed equipment are presented in Table 4 at various receiver set back distances. This table shall be used to inform when and what equipment will require mitigation or management and shall be kept up to date when new information becomes apparent through noise monitoring or other means. Table 4: Indicative noise levels from proposed equipment at 1m from a faรงade (unmitigated)

Equipment

Typical Operating Sound Power (dB LwA)

Noise Level (dB LAeq) at a distance (m) 5

Concrete Cutting

115

5T Excavator with breaker attachment

111

20T Excavator with pulveriser or shear attachment

104

20T Excavator clearing debris

103

Mobile crane

Road truck (idling)

Dismantling of buildings will primarily be carried out using a large excavator with a pulveriser or shear attachment, crane, and hand tools. Noise contours for these works in various locations are included in Appendix B. These activities are predicted to generally comply without specialist mitigation, provided they are undertaken in a manner consistent with the measures detailed in Section 5.0. The exception to this is at 12-14 Nikau Street and 10 Flower Street, where demolition works is predicted to exceed the Project Standards given its proximity neighbouring buildings at 16 Nikau Street and 6 Flower Street. However, the exceedance is scheduled to be less than 5 decibels at these receivers. Therefore, a SSCNVMP for general demolition works would not be required for this activity in accordance with Condition 37.2 (b). A concrete saw and small excavator mounted concrete breaker (e.g. 5T) will be used to remove foundations where not practicable to crush with a pulveriser attachment. Local noise barriers will be used for these activities in accordance with Section 5.5. Effective noise barriers reduce the noise levels in Table 4 by approximately 10 decibels for ground floor receivers. Receivers that are elevated or on upper floor levels can have line-of-sight over a barrier and into a site and would receive minimal noise mitigation. Further mitigation and management measures for concrete cutting and concrete breaking activities are included in Sections 5.6 and 5.7 respectively.

Concrete cutting and breaking noise levels are predicted to generally comply with the noise limits in Table 2. Any residual short-term exceedances are predicted to be local, short-term (i.e. cumulatively less than 2 weeks at any one receiver) and exceed the limits by less than 5 decibels. The exception is at 12-14 Nikau Street and 10 Flower Street as identified above. Concrete cutting is predicted to exceed the Project Standards by up to 15 decibels given the close proximity to the works at 16 Nikau Street and 6 Flower Street. Therefore, a SSCNVMPs will be required for these receivers in accordance with Condition 37.2 (b). Draft SSCNVMPs are included in Appendix C2 and C3. Where practicable, large concrete pieces should be moved at least 20m away from these receivers prior to breaking/cutting the larger pieces into smaller pieces. A SSCNVMP for MediaWorks is required by Condition 40 and is included in Appendix C1.

4.2

Vibration Concrete breakers will be the primary sources of construction vibration. While Section 5.0 provides general noise and vibration mitigation and management measures, Section 5.7 provides specific measures to minimise concrete breaking noise and vibration. To enable compliance with the cosmetic building damage thresholds in Section 3.2, a 1 – 5 ton excavator mounted concrete breaker will be used within 10 m of buildings outside the project site. Within 2m of buildings, a hand breaker will be used (this relates to 12-14 Nikau Street, 6 Flower Street, 75, 83 Mount Eden Road only). These zones should be reviewed by the Acoustic Specialist when new information becomes apparent through vibration monitoring (Section 7.2) or other means. Building demolition has the potential to produce high levels of vibration, generally from one-off events, such as dropping of concrete or other heavy items. The buildings to be removed are low rise, with concrete block walls and timber or steel framing. As such, high vibration events will largely be avoided. However, residual vibration will be avoided by nibbling concrete and lowering the structure in parts rather than pulling it down in large panels. Accordingly, compliance is readily achievable. A SSCNVMP for MediaWorks is required by Condition 40 and is included in Appendix C1.

5.0

MITIGATION AND MANAGEMENT

5.1

Training All staff will participate in an induction training session when they commence work on the Project. The induction will include a briefing on this CNV DWP, with attention given to the following matters: •

Roles and responsibilities for management of noise and vibration matters;

•

Construction noise and vibration limits;

•

Information about noise and vibration sources on-site;

•

Noise and vibration mitigation and management procedures;

•

The sensitivity of receivers to noise and vibration (including MediaWorks), and any operational requirements and constraints identified through communication and consultation; and

•

Complaints management procedures.

Awareness of current noise and vibration matters on, or near active worksites, will be addressed during site meetings and/or ‘toolbox’ training sessions.

5.2

Construction Hours •

Normal construction hours are Monday to Friday, 0700 – 1800 hrs and 0700 – 1400 hrs on Saturday. Daytime works on Sundays, and evening works extending to 2200 hours between Monday to Saturday, should be minimised where practicable.

5.3

•

No night-time works are programmed, but where required, prior guidance on suitable management measures shall be sought from the Specialist Noise & Vibration Advisor (Table 1);

•

If road cutting is required, the hours shall be restricted to Monday to Friday and 0700 – 1800 and 0700 – 1400 hrs on Saturdays in accordance with condition 36.3 (b); and

•

Concrete breaking shall initially be timed to occur outside MediaWorks Sensitive Times to enable demonstration of compliance with Condition 35.2 prior to any expansion of the works period. Sensitive Times are defined in Condition 35.2 as 0600 – 0900 hrs, 1200 – 1230 hrs, 1730 – 1930 hrs, 2230 – 2330 hrs on weekdays, 1730 – 1900 hrs on weekends, and a defined two-week period spanning Christmas Day and New Year’s Day. However, these periods have since been updated, with reference to consultation undertaken with MediaWorks and attached in Appendix C1.

Mechanical Plant Selection Some demolition activities have the potential to exceed the Project construction noise and vibration limits at close receiver distances. It is essential that appropriate mitigation and management measures are identified and employed in advance of the works to avoid exceedances. When selecting construction equipment:

5.4

•

Quiet and low vibration construction methods will be used in favour of noisy/high vibration construction methods where practicable (cut and lift concrete slab instead of breaking);

•

Equipment will be well maintained;

•

Exhaust silencers will be fitted;

•

Fit or upgrade engine covers in consultation with equipment manufacturer where appropriate; and

•

Substitute diesel engines with electric motors where practicable.

General Mitigation Measures Best Practical Option (BPO) mitigation will be implemented throughout the construction programme to avoid exceedances. This will include, but not be limited to the following: •

Keep the construction time near noise sensitive areas to a minimum;

•

Avoid unnecessary noise, such as shouting, the use of horns, loud site radios, rough handling of material and equipment, and banging or shaking excavator buckets;

•

Avoid metal on metal contact where practicable by minimising drop height of materials, such as during loading and unloading of trucks;

•

Tonal reversing alarms shall be prohibited on site. Suitable alternatives may include flashing lights, broadband audible alarms or reversing cameras inside vehicles;

•

Mitigate track squeal from tracked equipment, such as excavators and piling rigs. This may include tensioning and watering or lubricating the tracks regularly;

•

Avoid high engine revs where practicable through appropriate equipment selection and turn engines off when idle / parked;

•

Avoid steep internal haul routes and keep the road surface smooth and well maintained;

•

Maximise the distance between the noise source and the nearest sensitive receiver by positioning fixed plant away from sensitive receivers, or orienting machinery to maximise the distance between the engine exhaust and the nearest sensitive building façade where practicable (e.g. excavators and cranes);

•

Crane and secure loads using straps in preference to chains where safe and practicable;

5.5

•

Utilise power from the national grid in preference to generators where practicable;

•

Utilise noise barriers and enclosures where effective (refer Section 5.5);

•

Implement further measures identified through communication and consultation with sensitive receivers (refer Section 6.1); and

•

Undertake noise and vibration monitoring to confirm compliance or identify high noise and/or vibration machinery (refer Section 7).

Noise Barriers Temporary noise barriers should be used where a construction noise limit is predicted to be exceeded (Section 4.1) and the barriers would noticeably reduce the construction noise level. They should be installed prior to works commencing and be maintained throughout the works. Effective noise barriers typically reduce the received noise level by 10 decibels. Where practicable, the following guidelines should be incorporated in the design and utilisation of temporary noise barriers: •

The panels should be constructed from materials with a minimum surface mass of 6.5 kg/m2. Suitable panels include 12 mm plywood or the following proprietary ‘noise curtains’: - Duraflex ‘Noise Control Barrier - Performance Series’ (www.duraflex.co.nz) - Soundex ‘Acoustic Curtain - Performance Series' (www.ultimate-solutions.co.nz) - Flexshield ‘Sonic Curtain with 4 kg/m2 mass loaded vinyl backing’ (www.flexshield.co.nz) - Alternatives should be approved by a suitably qualified acoustic specialist because some proprietary noise curtains have insufficient surface mass for general use

•

The panels should be a minimum height of 2m, and higher if practicable to block line-of-sight;

•

The panels should be abutted or overlapped to provide a continuous screen without gaps at the bottom or sides of the panels; and

•

The panels should be positioned as close as practicable to the noisy construction activity to block line-of-sight between the activity and noise sensitive receivers.

Where positioned on the site boundary, additional local barriers should be considered near the activity to ensure effective mitigation for sensitive receivers on upper floor levels.

5.6

5.7

Concrete Cutting •

No night-time periods and Sundays/public holidays;

•

Minimise the cutting period, and, the number of cutting periods (e.g. complete all cutting in one extended period rather than two shorter periods with the same overall duration);

•

Select blades that are sharp, maximise the number of teeth, minimise the blade width, minimise gullet depth, and have built in vibration damping slots (where appropriate); and

•

Use a unit fitted with a blade shroud and operate with a water supply.

Concrete Breaking •

No evening and night-time periods and Sundays/public holidays;

•

An initial perimeter saw cut should be made at the perimeter to reduce vibration transfer to buildings within 10m of the works extents (Section 5.6);

•

Minimise the volume of breaking (e.g. use a crushing shear or pulveriser attachment in place of a breaker, or use a cut and lift approach to enable breaking offsite);

•

Minimise the duration of breaking, and, the number of breaking periods (e.g. complete all breaking in one extended period rather than two shorter periods with the same overall duration);

•

Match the size of breaker to the scale of the works (i.e. large enough to undertake the works efficiently, but avoiding oversized units and unnecessary noise and vibration levels);

•

Match the chisel/tip type to the material and use a dampened bit to avoid ringing; and

•

Avoid ‘blank’ firing by engaging the material before commencing and stopping before it fires through the material.

6.0

COMMUNICATION

6.1

Communication Overview Communication with Project stakeholders in relation to construction noise and vibration impacts is described in the Project Communication and Consultation Plan. A summary of communication with sensitive receivers will be maintained in Appendix D of this CNV DWP, including a clear explanation of where any comments from sensitive receivers have not been incorporated, and the reasons why not, as well as any outstanding issues or disputes. As a minimum, the following communication shall be undertaken:

6.2

•

Written notification of the Project description shall be provided to MediaWorks and all property occupiers within 50m of a worksite to raise awareness of the Project, the required construction works and their duration in their vicinity. This should be undertaken at least 20 working days prior to the commencement of works on site.

•

The Communications Manager shall advise any affected parties of construction activities that are predicted or have been identified by the Construction Manager to exceed the limits in Section 3.0 following the application of BPO mitigation identified in Section 5.0. Where avoidance of exceedances is impractical, consultation shall be undertaken to avoid significant adverse effects.

•

The Communications Manager shall provide monthly updates of monitoring and project progress to affected parties.

•

The Communications Manager shall undertake communications with MediaWorks in accordance with CRL Condition 16. This shall include weekly updates of monitoring and project progress to MediaWorks (unless otherwise agreed with MediaWorks). In the event of breaking news, MediaWorks is to advise the Communications Manger as soon as possible. The contractor shall modify their activities as soon as is practicable with specific regard to safety to ensure compliance with the standards in CRL Condition 35.2.

•

The Communications Manager shall address any concerns and complaints regarding construction noise and vibration in accordance with Section 6.2. When discussing vibration concerns, it is important to convey that vibration can be felt at levels far below those that pose even the smallest risk of building damage.

Complaints Response The contact name and phone number of the Communications Manager, to which complaints can be directed, shall be clearly included in any written notification and on-site signage. Any construction noise and/or vibration complaint shall be recorded in a complaints file, and an investigation shall be undertaken involving the following: •

Identification of sources of concern, and measuring or estimating noise and/or vibration levels at the time of the complaint;

•

A hotline phone/text number shall be established to receive complaints. Acknowledge receipt of the concern or complaint. An initial response shall be undertaken within 24 hours of receiving a complaint and resolved as soon practicable. If a reasonable complaint relates to building damage or sleep disturbance, inform the on-duty site manager as soon as practicable to cease works pending the investigation;

•

Reporting the findings and recommendations to the Construction Manager;

•

Actions and time taken to close-out complaint;

•

Communication with the complainant; and

•

Reporting of the investigation in the complaints file.

A record of all concerns and/or complaints received shall include: •

The name of the person(s) who raised the concern or complaint (unless they elect not to provide this) and details of the concern or complaint;

•

Where practicable, weather conditions at the time of the concern or complaint, including wind direction and cloud cover if the complaint relates to noise;

•

Known construction activities at the time and in the vicinity of the complainant during the concern or complaint period; and

•

Remedial actions undertaken (if any) and the outcome of these, including monitoring of the activity.

If a complaint is received about vibration amenity, and a measurement demonstrates exceedance of the Project vibration limits, the following procedures will be implemented: •

Further measurements may be required to determine the extent of the exceedance and identify the activity/activities responsible;

•

Review the mitigation strategy and construction methodology to ensure BPO is applied;

•

Further measurements may be required to determine the effectiveness of BPO measures and reassess the compliance status;

•

Determine if the receiver qualifies for a SSCNVMP (refer Section 3.2.2); and

•

The Communications Manager shall liaise with affected parties (refer Section 8.0).

7.0

MONITORING

7.1

Noise Construction noise shall be measured and assessed: •

By a suitably qualified acoustics expert (e.g. Member of the Acoustical Society of New Zealand) and in accordance with the requirements of New Zealand Standard NZS 6803: 1999 “Acoustics Construction Noise”;

•

At the first instance of high noise activities (such as concrete cutting and concrete breaking) or in response to reasonable noise complaint being received;

•

At one metre from the most affected building façade, or, if this position is not accessible, at an equivalent position where practicable. If this is not possible, measured noise levels shall be undertaken at a proxy position and adjusted for distance and façade reflections as appropriate;

•

For a representative duration not less than 15 minutes and not greater than 60 minutes. The noise level shall be reported with the measurement duration, e.g. 65 dB LAeq (15min); and

•

The monitoring results shall be used to update Table 4 and made available to Council.

A flow chart showing the process for attended noise monitoring is included Figure 4 overleaf. Further noise monitoring requirements are detailed in Appendix C1.5 for MediaWorks Studio 1. Figure 4: Noise Monitoring Flow Chart Undertake attended noise monitoring (Section 7.1): • • • •

During the first use of high noise equipment (Section 4.1) In response to a reasonable complaint (Section 6.2) To verify an exceedance (Section 7.1) As required by an SSCNMP (Appendix D)

Comply with the project standards? (Section 3.1)

Notify Noise & Vibration Monitoring Manager and review mitigation and management strategies to ensure BPO (Section 5)

Yes Can project standards be practically achieved?

Yes

Identified mitigation and management opportunities

Was this in response to a previous noncompliant measurement?

Yes

Revise construction methodology

Does the receiver qualify for a SSCNMP? (CRL 37) Yes Prepare SSCNMP in consultation with the affected parties (Appendix D)

Submit report(s) to Noise & Vibration Monitoring Manager within one week of action taken

7.2

Vibration Construction vibration levels shall be measured and assessed: •

By a suitably qualified acoustics expert (e.g. Member of the Acoustical Society of New Zealand);

•

In accordance the requirements of German Standard DIN 4150-3:1999 “Structural vibration – Part 3: Effects of vibration on structures”;

•

At the first instance of high vibration activities (such as concrete breaking) or in response to reasonable complaint being receiver;

•

At the closest building foundations;

•

For a representative construction duration, measured at one second intervals;

•

By a suitably qualified and experienced specialist;

•

Vibration monitoring requires consent to access the building of interest; and

•

The monitoring results shall be used to update Section 0as appropriate.

A flow chart showing the process for attended vibration monitoring is included as Figure 5 overleaf. Further vibration monitoring requirements are detailed in Appendix C1.5 for MediaWorks Studio 1.

Figure 5: Vibration Monitoring Flow Chart Undertake attended vibration monitoring (Section 7.2): • • • •

During the first use of high vibration equipment (Section 4.2) In response to a reasonable complaint (Section 6.2) To verify an exceedance (Section 7.2) As required by an SSCVMP (Appendix D)

Cosmetic Building Damage Comply with the cosmetic building damage project standards? (Section 3.2)

Yes

Notify Noise & Vibration Monitoring Manager, cease the activity, engage a structural engineer and undertake a building condition survey

Yes

Is the building classified as heritage?

Engage heritage expert

Is there damage as a result of the activity?

No Amenity

Yes

Type of damage?

Structural

Cosmetic

Seek advice from structural engineer before continuing

Comply with amenity project standards? (Section 3.2)

Notify Noise & Vibration Monitoring Manager and review mitigation and management strategies to ensure BPO (Section 5) Yes

Yes Yes

Identified mitigation and management opportunities?

Response to a previous noncompliant measurement?

Yes

Revise construction methodology

Can the project standards be practically achieved?

Does the receiver qualify for a SSCVMP? (CRL 38) Yes Prepare SSCVMP in consultation with the affected parties (Appendix D)

Submit report(s) to Noise & Vibration Monitoring Manager within one week of action taken

The following procedures will be implemented where measured construction vibration exceeds the Project standards in condition 33: •

The activity giving rise to the exceedance should cease as soon as safe and practicable to do so;

•

Determine if the receiver qualifies for a SSCVMP (refer Section 3.2.3);

•

A detailed building condition survey will be undertaken; and

•

The Communications Manager will liaise with the building owner throughout this process.

If damage has not occurred, then that activity can continue provided the measured vibration level is not exceeded further. If damage has occurred, then alternative construction methods should be investigated, subject to implementation of the best practicable option (BPO), and the Requiring Authority shall commit to repairing the damage within a reasonable timeframe after the construction phase ceases.

8.0

AFFECTED PARTIES

8.1

Airborne Noise

8.1.1 Façade Sound Insulation The noise level received inside, for example, an office or living room, will depend on the sound insulation performance of the façade (particularly the glazing) and room constants (such as the room dimensions and surface finishes). These factors can vary widely. The Construction Noise Standard (NZS 6803) recommends noise limits assessed at 1m from the external façade of a building, assuming a sound level difference of 20 decibels to sensitive receiving environments inside. For the purpose of estimating actual noise effects on a room by room basis, the predicted façade sound insulation performance of buildings can be generally categorised by the type of glazing / ventilation provision as follows: •

Sealed glazing

30 decibels sound level difference

•

Operable windows

25 decibels sound level difference

•

Open Windows

15 decibels sound level difference.

The SSCNMPs in Appendix C will use the above assumptions initially. However, they will be updated with site specific measured performance when available. Measurements in advance of the works may be practicable in some cases. In other cases, a visual inspection may provide a more informed estimate of façade performance.

8.1.2 Noise Effects ‘Noise effects matrices’ are presented in Table 5. They enable estimation of the construction noise level received inside, based on the external noise level and façade glazing type. The noise effects matrices are indicative only, as detailed assessment requires measurement of the actual façade performance on a space by space basis. The noise effects are categorised generally using the following colour coding: •

Green:

Acceptable

•

Orange:

Appreciable

•

Red:

Significant

To use the matrices, follow this three-step process: •

Measure the external noise level at 1m from the façade, or estimate it from Section 4.1;

•

Determine the category of façade glazing sound insulation performance from Section 8.1.1 of this CNV DWP or measured on-site façade sound level difference for a specific receiver location; and

•

Use the relevant lookup table to estimate the received internal noise level and associated typical effects that may be experienced using Table 5.

Table 5: Daytime noise levels in commercial & industrial buildings and habitable rooms in dwellings External Noise Level (dB LAeq)

8.2

Estimated Internal Noise Level (dB LAeq)

(refer Appendix B)

Sealed glazing (30 dB)

Operable windows (25 dB)

Open windows (15 dB)

•

< 50 dB LAeq

Typically acceptable

•

50 – 60 dB LAeq

Annoyance and reduction in work efficiency

•

> 60 dB LAeq

Difficulty holding a normal conversation and reduction in work efficiency

Management of Adverse Effects The following process will be implemented for any construction activity that is found to exceed the relevant construction noise and vibration conditions: •

Review the construction methodology, mitigation and management strategies to ensure they represent the BPO;

•

The Communications Manager will consult with affected parties to understand their sensitivities, including times, activities and locations. Consultation should focus on a collaborative approach to managing the adverse effects from construction noise and vibration while works are undertaken in the vicinity. The Communications Manager (or representative) shall be available 24/7 during works periods. A record of consultation will be included in the relevant SSCNMP (refer to Appendix C) or otherwise in Appendix D as appropriate;

•

Implement measures to avoid significant adverse effects as agreed with the affected party and monitor the activity to verify the extent of any adverse effects; and

• Temporary relocation will be considered for sensitive receivers where all practicable noise and vibration management and mitigation measures have been implemented and significant adverse noise effects are predicted. This will be in exceptional cases only, and advice from the Specialist Noise and Vibration Advisor will be sought prior.

9.0

CNV DWP REVIEW AND UPDATING (INCLUDING SSCNMP AND SSCNMP) In accordance with Conditions 7.5 and 11, this CNV DWP will undergo a review process with the relevant CRL Community Liaison Group (CLG) and a suitably qualified independent peer reviewer before being issued. The CNV DWP (including SSCNMPs and SSCVMPs) will be updated throughout the course of the Project to reflect changes associated with construction techniques, equipment or due to unresolved

complaints. The review period will be no less than annually in accordance with Condition 22. The review(s) will take into consideration: •

Compliance with the CRL designation conditions;

•

Any significant changes to construction activities or methods;

•

Key changes to roles and responsibilities within the Project team;

•

Changes in industry best practice standards;

•

Results of inspections, monitoring and reporting procedures associated with the management of adverse effects during construction;

•

Comments or recommendations from Auckland Council; and

•

Unresolved complaints and any response to complaints and remedial action taken to address the complaint.

The process for updating this CNV DWP (including SSCNVMPs) due to a material change to the Project or the annual review, is as follows (refer to CRL Designation Condition 23): •

Affected parties and the CLG must be notified of the review and any material change proposed to this DWP;

•

This DWP must clearly document the comments and inputs received from affected parties in relation to any material changes, along with a clear explanation of where any comments have not been incorporated, and the reasons why not;

•

Any material change proposed to this DWP shall be subject to an independent peer review as required by CRL designation Condition 11; and

•

Any material change proposed to this 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.

A copy of the original CNV DWP document and subsequent versions will be kept for the Project records and marked as obsolete. Each new / updated version of the CNV DWP documentation will be issued with a version number and date to eliminate obsolete CNV DWP documentation being used. A summary of the review process will be provided annually to Auckland Council and otherwise be made available on request.

APPENDIX A GLOSSARY OF TERMINOLOGY Noise Ambient Noise

Ambient Noise is the all-encompassing noise associated with any given environment and is usually a composite of sounds from many sources near and far.

A-weighting

A frequency filter which is applied to a measurement of sound so as to more closely approximate the frequency bias of the human ear.

Decibel – the basic measurement unit of sound. It is a logarithmic ratio of measured sound pressure level with respect to a reference level of 20 micropascals.

LAeq(T)

The A-weighted, time averaged sound level (on a logarithmic/energy basis) over the measurement period T (e.g. between 10 and 60 minutes).

LAFmax

The maximum A-weighted sound level recorded during the measurement period. Measured with fast time weighting i.e. a 125 millisecond time constant

Noise

A sound that is unwanted by, or distracting to, the receiver.

NZS 6801:2008

New Zealand Standard NZS 6801:2008 "Acoustics - Measurement of Sound"

NZS 6802:2008

New Zealand Standard NZS 6802:2008 "Acoustics - Environmental Noise”.

NZS 6803:1999

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

PPV

Peak Particle Velocity, measured in mm/s. This is the standard metric for assessing construction vibration levels.

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. General

Suitably qualified and experienced acoustic specialist

A person who has sufficient qualifications and experience in the relevant field(s) of acoustics (noise and/or vibration) to undertake robust measurements and assessments i.e. a Member of the Acoustical Society of New Zealand. Other Abbreviations

CRL

City Rail Link

CLG

Community Liaison Group

BPO

Best Practicable Option

CNV

Construction Noise and Vibration

DWP

Delivery Work Plan

SSCNMP

Site Specific Construction Noise Management Plan

SSCNVMP

Site Specific Construction Noise and Vibration Management Plan

SSCVMP

Site Specific Construction Vibration Management Plan

APPENDIX B NOISE LEVEL PREDICTIONS Figure 6: Grid noise map from general demolition works – South Pacific Timber block

Figure 7: Grid noise map from concrete cutting with mitigation – South Pacific Timber block

Figure 8: Grid noise map from general demolition works - 97 Mt Eden Road block

Figure 9: Grid noise map from concrete cutting with mitigation â€“ 97 Mt Eden Road block

Figure 10: Grid noise map from general demolition activity â€“ Western most block

Figure 11: Grid noise map from concrete cutting with mitigation â€“ Western most block

Figure 12: Grind noise map from general demolition works â€“ Opposite MediaWorks

Figure 13: Grid noise map from concrete cutting with mitigation - Opposite MediaWorks

Figure 14: Grid noise map from general demolition works â€“ 16 Nikau Street

Figure 15: Grid noise map from concrete cutting with mitigation -â€“ 16 Nikau Street

APPENDIX C SITE SPECIFIC MANAGEMENT PLANS The following site specific plans are included in this appendix: •

C1 MediaWorks SSCNVMP

•

C2 12-14 Nikau Street SSCNVMP

•

C3 10 Flower Street SSCNVMP

MediaWorks SSCNVMP

C1.1

Introduction This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the MediaWorks Building at 3 Flower Street. It is required to satisfy CRL Conditions 35, 39 and 40. As Appendix C1 of the CRL Construction Noise and Vibration Delivery Work Plan (CNV DWP), this SSCNVMP is a supplementary document that builds on the Project CNV DWP, and therefore, directly references relevant sections of the DWP to avoid repetition. Together, the CNV DWP and MediaWorks SSCNVMP are consistent with the draft MediaWorks SSCNVMP3. It must be implemented for works within 100m and blasting activities within 200m of the MediaWorks Building. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects on MediaWorks. It contains, or references: •

Details of those responsible for implementing this SSCNVMP (refer CNV DWP Section 2.6)

•

MediaWorks noise and vibration sensitive spaces (refer Section C1.3)

•

The relevant Project Standards (the general requirements in CNV DWP Section 3.0 and the MediaWorks specific requirements for Studio 1 are summarised in Section C1.2)

•

Predicted construction noise and vibration levels and transfer functions (refer Section C1.4)

•

Mitigation and management measures (refer CNV DWP Section 5.0)

•

Communication protocol (refer CNV DWP Section 6.0)

•

Monitoring (refer CNV DWP Section 7.0 and Section C1.5 specifically for Studio 1)

•

Contingency measures (refer CNV DWP Section 8.0 and Section C1.6 specifically for Studio 1).

•

SSCNVMP review process (refer CNV DWP Section 9.0 and CRL condition 40.13)

This SSCNVMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C1.2

Project Standards The relevant Construction Noise Project Standards are summarised in Table C1.2.1. Table C1.2.1: Construction Noise – MediaWorks Condition

Requirement

Limit4

Assessment location (period)

31.1

General5

75 dB LAeq

External façade (all times)

35.2

Studio 16, 7

30 dB LAeq (5 min) 8 33 dB LAeq (1 sec)

Inside Studio 1 (Sensitive Times)

Project Agreement in respect of the City Rail Link between Auckland Transport (AT) and MediaWorks Holdings Limited (Mediaworks), reference item 6 and Appendix 1. 4

In assessing compliance with the limit, the cumulative level of all sources shall be considered

Measured and assessed in accordance with the provisions of New Zealand Standard NZS 6803:1999 “Acoustics Construction Noise” 6

Sensitive times defined in CRL Conditions 35.1 – 35.3 and summarised below

Limits may be up to 5 decibels higher for defined periods with the specified notifications detailed in condition 35.2

Position representative main presenter(s) microphone and with the doors and windows closed (Conditions 35.4/5)

The relevant Construction Vibration Project Standards are summarised in Table C1.2.2. Table C1.2.2: Construction Vibration – MediaWorks Condition

Requirement

Limit

Assessment location9 (period)

33.1

Building Damage

1-100Hz: 10 mm/s PPV

Horizontal plane of highest floor level

35.3

Studio 1

0.1 mm/s PPV10

Floor of Studio 1 (Sensitive Times). If compliant in Studio 1, vibration in other studios will be acceptable.

35.6

Amenity

1 mm/s PPV

Floor of office areas, meeting rooms and technical suites (occupied times).

35.8

Sensitive Equipment

200mg (2 m/s2) 5 – 500 Hz

Floor supporting sensitive equipment

The operational requirements and constraints provided by MediaWorks for Studio 1 are detailed in CRL Conditions 35.1 – 35.3 and summarised as follows: •

Sensitive Times are defined as: - During scheduled live broadcasting - During emergency/breaking news live broadcasting - During scheduled recording sessions

•

Live Broadcasting Periods are defined as: - Weekdays: 0600 – 0900 hrs, 1200 – 1230 hrs, 1730 – 1930 hrs and 2230 – 2330 hrs - Christmas holiday season (Saturday prior to Christmas Day to Sunday following New Year’s Day inclusive): 1730 – 1900 hrs

C1.3

Building Details Pre Construction Consultation To be completed and will build on previous CRL C6 consultation captured in the C6 DNV DWP Appendix C1.3, including relevance: •

CRL C6 monitor locations on supplied drawings (refer Figures in C1.5)

•

Alex Nicholson advised that the Sensitive Times do not reflect MediaWorks current operations.

•

MediaWorks provided updated Sensitive Times (received 24 April 2018): o

Monday – Thursday:

Friday:

Saturday:

Sunday:

0600 – 0915, 0900 – 123011,

1600 – 1645,

1730 – 1915,

2020 – 2330

1600 – 1645,

1730 – 1915,

2020 – 2330

1730 – 1915 1730 – 1915

Other matters to discuss during the consultation include but are not limited to: 9

These are the measurement locations where required by the Standard. For monitoring, proxy locations can be used with established transfer functions (refer condition 40.9) 10

Limit may be elevated by agreement with MediaWorks

For the Nation and Hui. These times are not sensitive during December, January and February

•

An overview of the project

•

General programme

•

Predicted noise and vibration levels

•

The mitigation, management and timing measures employed to avoid effects on MediaWorks

•

An overview of the CNV DWP and specific measures in this SSCNVMP

•

Communications and consultation triggers and protocol

•

Proposed noise and vibration monitoring

•

Location of noise and vibration sensitive spaces

Actions that were taken should be noted here as well as the process that was used to resolve any disagreement if there were any.

C1.4

Predicted Construction Noise and Vibration Levels In accordance with CRL condition 40.1, high noise and vibration equipment items are identified in Section 4.0 of the CNV DWP. Noise (excluding Studio 1) Concrete breaking and concrete cutting activities at the Nikau St site are predicted to generate the highest noise levels. These activities are predicted to result in noise levels of 70 – 80 dB LAeq on the most exposed façade of the MediaWorks building. These exceedances are predicted to be local, short-term and exceed the limits by less than 5 decibels. Secondary glazing must be been installed to further mitigate residual noise levels in office areas on level 2 of the MediaWorks building12. Vibration (excluding Studio 1) Concrete breaking vibration received in the MediaWorks building office areas, meeting rooms and technical suites is predicted to be readily compliant with the 1mm/s PPV amenity limit in CRL condition 35.5 (discussed further for Studio 1 below). Studio 1 Noise and Vibration The concrete breaking works are potentially 40m from Studio 1 on the south side of Nikau Street. The vibration level from a small excavator mounted concrete breaker (5T) received in Studio 1 is predicted to be 0.1mm/s PPV at 40m, which is at the Studio 1 limit specified in CRL condition 35.3. However, it should be acknowledged that these predictions are indicative only and are beyond the reliable tolerances of the prediction method. CRL Condition 35.2A limits rock breaking used for tunnel excavation within 100 metres during defined Sensitive Times (as defined in Condition 35.2) unless compliance with the limits in Condition 35.2 can be demonstrated. While concrete breaking is neither rock breaking nor for tunnel excavation, the first instance of concrete breaking within 100m will be timed to occur outside Sensitive Times to enable measurement and demonstration of compliance with Condition 35.2 prior to expanding the works period. This approach aligns with the requirements of CRL conditions 40.3 and 40.8 and addresses any residual risk of exceedance. Furthermore, it is noted that the 0.1mm/s PPV vibration limit primarily controls reradiated noise levels to below 30 dB LAeq (5 min) and 33 dB LAeq (1 sec) specified in CRL condition 35.2. This relationship

Project Agreement in respect of the City Rail Link between Auckland Transport (AT) and MediaWorks Holdings Limited (Mediaworks), reference item 7 and Appendix 2.

was established in an SLR report during the CRL hearings process13. It determined that the airborne noise component received in the Studio was negligible (transfer function in the order 80 decibels) and that the only residual noise effect would be from reradiated noise. This relationship will be used as the initial basis to satisfy Conditions 40.2 and 40.3, however, will be reviewed following monitoring of the first occurrence of concrete breaking (described in the previous paragraph).

C1.5

Studio 1 Monitoring Overview Noise and vibration monitoring inside Studio 1 shall be undertaken by a suitably qualified and experienced acoustic specialist in accordance conditions 35 and 40. This shall include continuous automated monitoring in accordance with condition 40.9. The data shall be available in real time to City Rail Link Limited, Auckland Council and MediaWorks. Prior to any demolition commencing, additional proxy noise and vibration controls shall be determined, and agreed upon by MediaWorks, that enable on-site compliance management. The proxy controls shall be determined in accordance with conditions 40.2 and 40.3 and included for reference in the Tables C1.2. System Setup The automated monitoring systems measure continuously. The data is uploaded to a secure website (or similar) for access by key personnel. The systems also generate automated email/text alerts for any exceedances. In addition to the automated monitoring, attended monitoring will be undertaken during the first occurrence of concrete breaking activities within 100m of MediaWorks. This will enable verification of the measured levels in Studio 1 and inform subjective impressions of resulting effects. It will also inform the transfer functions for this activity between the demolition sites and Studio 1. The transfer functions may allow subsequent measurements during the remainder of construction period to be undertaken at other locations. These would be the ‘proxy’ locations and would be reviewed and agreed upon by MediaWorks prior to their use. Monitoring may occur at locations simultaneously or sequentially provided the vibration sources of interest are captured, and compliance with the conditions can be demonstrated. The monitoring locations may change over time to accommodate different phases of construction, but throughout there will be a consistent focus on Studio 1. Vibration measurements are likely to be influenced by other activities causing vibration in the building (e.g. people walking past the transducers, moving equipment, doors slamming etc.). These ‘false positives’ can be managed in the first instance through appropriate placement of the monitors but can also be managed by processing the data statistically or comparing simultaneous monitoring data from the two vibration monitors in the building to ensure these anomalous events are not interpreted as construction events. The trigger threshold for text/email alerts may also be modified as appropriate to reduce the number of ‘false positives’ in accordance with Condition 35.3 by agreement of both the Requiring Authority and MediaWorks. Monitoring Equipment

SLR report Mediaworks Investigations Borehole and Studio Vibration, 610.12219.00400-R1, dated 21 October 2013

Construction vibration will be monitored using Syscom MR3000C units. The units would typically be placed on the basement floor near the faรงade closest to the construction works and/or in Studio 1. Alternatively, they may be placed on the top floor near the same faรงade. They do not require fixings (i.e. clamps, adhesives) to be installed, however weighing down with a sandbag is recommended. They are best located away from foot traffic to avoid being bumped. The units record numerical vibration levels. The data is accessed remotely via the 3G network. If a preset monitoring trigger level is exceeded, it will alert the monitoring manager. Construction noise will be measured using a 01dB Cube Smart Noise Monitoring Terminal unit. An external microphone will be placed on the outside of the faรงade that faces the construction works. The unit records numerical noise levels. The data is accessed remotely via the 3G mobile phone network. If a preset monitoring trigger level is exceeded, it will capture a short audio recording and alert the monitoring manager. Review of the monitoring data and audio may help identify the source and inform construction methodology, mitigation opportunities and communication. With mains power, the units operate autonomously, only requiring access for yearly maintenance and calibration. The units use a conventional house plug and draw between 2 and 3.6 watts of power, which is similar to a mobile phone charger. Monitoring Locations The monitoring locations agreed in consultation with MediaWorks for CRL C6 and these demolitions works are as follows:

Studio 1 Vibration monitor

Roof Noise monitor

L1 Store Vibration monitor

Alert Response A separate document will detail the people who are setup to receive the text and/or email alerts, provides access to the vibration web monitoring system, and the alert response protocol. It will be provided separately from this SSCNVMP because it contains sensitive information.

C1.6

Contingency Measures As required by CRL condition 40.11, where any of the noise and vibration limits for Studio 1 in conditions 35.2, 35.3, 35.7 and 35.8 are exceeded, and where the noise and/or vibration levels are unacceptable to MediaWorks, the following corrective action measures shall apply: •

Cease the work giving rise to the exceedance as soon as safe and practicable to do so

•

Review the construction methodology, mitigation and management strategies to ensure they represent the BPO and reduce the noise or vibration levels.

•

Monitor to determine compliance once the remediation works are complete

•

Ensure that the work responsible for the exceedance is not recommenced during Sensitive Times

Table C1.6.1 details activities that are predicted to exceed the limits in C1.2 and the predicted effects. Table C1.6.2 provides a summary of consultation with MediaWorks representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C1.6.1: Activity Detail (Noise) ** indicative examples only** #

Activity Details

Predicted Noise Effects

Activity Period Duratio n Days Hours

Demolition XX 201X – YY 201X X months Monday to Saturday X – Y hours

Location: Studio vibration level: Transfer Function: Reradiated noise level: Potential effects:

South façade 0.2mm/s PPV N/A 35 dB LAeq Effects on broadcast quality

Activity Period Duratio n Days Hours

X X X X X

Location: Studio vibration level: Transfer Function: Reradiated noise level: Potential effects:

X X X X X

Table C1.6.2: Consultation in accordance with CRL Conditions 16 and 40.6 **indicative examples only** #

Details

Date Name Phone Email CRL rep

Matters discussed DD/MM/YY X X X X

A. Works during Sensitive Times (excluding rock breaking) B. Communications Manger to liaise and provide monitoring results and notification of upcoming works C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains Conclusion: Considered to be the BPO because it considers the needs of the stakeholder, ensures compliance and mitigates and manages the noise levels as far as practicable.

Date Name Phone Email CRL rep

DD/MM/YY X X X X

A. B. C. Conclusion:

12-14 Nikau Street SSCNMP

C2.1

Introduction This draft Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 12-14 Nikau Street. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL Condition 31. This SSCNMP has been prepared in accordance with CRL Condition 37 and is Appendix C2 of the CRL Mt Eden Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 12-14 Nikau Street. Section C2.2 identifies the noise sensitive spaces, the predicted or measured façade sound insulation performance, predicted noise effects and recommended consultation thresholds. As required under CRL Condition 37.5, Section C2.3 presents: •

The extent to which noise may exceed the Project Noise Standards (refer Table C2.3.1)

•

The timing and duration of any exceedance (refer Table C2.3.1)

•

The type of activity causing any exceedance (refer Table C2.3.1)

•

A summary of the communication and consultation with the receiver (refer Table C2.3.2)

•

The methods and measures to mitigate noise effects (refer Table C2.3.2)

•

A statement of why they reflect best practicable option (refer Table C2.3.2)

This draft SSCNMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C2.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation. Façade Sound Insulation Performance**TBC** The building at 12-14 Nikau Street is a double story building with a basement carpark and plaster or fibre cement façades, operable glazing and a flat steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels and 30 decibels on a façade with no windows. On this basis, the predicted construction noise effects can be determined from Table 5 in Section 8.1.2. Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 75 dB LAeq at the façade during the day. The consultation process is set out in Section 8.3 of the CNV DWP.

C2.3

Activity Detail Communication and Consultation Table C2.3.1 details activities that are predicted to exceed the noise limits in CRL Condition 31 and the predicted noise effects. Table C2.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C2.3.1: Activity Detail (Noise) ** indicative examples only** #

Activity Details

Predicted Noise Effects

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

West façade 85 – 90 dB LAeq 30 decibels sound level difference 55 – 60 dB LAeq Annoyance

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

X X X X X X

Table C2.3.2: Communication and Consultation **indicative examples only** #

Details

Receiver Date Name Phone Email CRL rep

Matters discussed Owner DD/MM/YY X X X X

A. Employ additional local hoardings and/or enclosures around noisy plant if non-compliant and practicable B. Communications Manger to liaise and provide monitoring results and notification of upcoming works C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains Conclusion: Considered to be the BPO because it considers the needs of the stakeholder and mitigates and manages the noise levels as far as practicable.

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A. B. C. Conclusion:

Table C2.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

A. Employ additional local hoardings and/or enclosures around slurry plant if non-compliant and practicable. B. Minimise mobile crane usage period and engine revs C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains BPO Conclusion: X

A. B. C. BPO Conclusion: X

10 Flower Street SSCNMP

C3.1

Introduction This draft Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 39 Boston Road. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL Condition 31. This SSCNMP has been prepared in accordance with CRL Condition 37 and is Appendix C3 of the CRL Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 10 Flower Stret. Section C3.2 identifies the noise sensitive spaces, the predicted or measured façade sound insulation performance, predicted noise effects and recommended consultation thresholds. As required under CRL Condition 37.5, Section C3.3 presents: •

The extent to which noise may exceed the Project Noise Standards (refer Table C3.3.1)

•

The timing and duration of any exceedance (refer Table C3.3.1)

•

The type of activity causing any exceedance (refer Table C3.3.1)

•

A summary of the communication and consultation with the receiver (refer Table C3.3.2)

•

The methods and measures to mitigate noise effects (refer Table C3.3.2)

•

A statement of why they reflect best practicable option (refer Table C3.3.2)

This draft SSCNMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C3.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation. Façade Sound Insulation Performance**TBC** The building at 10 Flower Street is five story building with fibre cement façades, operable glazing and a flat steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels. On this basis, the predicted construction noise effects can be determined from Table 5 in Section 8.1.2. Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 75 dB LAeq at the façade during the day. The consultation process is set out in Section 8.3 of the CNV DWP.

C3.3

Activity Detail Communication and Consultation Table C3.3.1 details activities that are predicted to exceed the noise limits in CRL Condition 31 and the predicted noise effects. Table C3.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C3.3.1: Activity Detail (Noise) ** indicative examples only** #

Activity Details

Predicted Noise Effects

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

North façade 85 – 90 dB LAeq 30 decibels sound level difference 55 – 60 dB LAeq Annoyance

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

X X X X X X

Table C3.3.2: Communication and Consultation **indicative examples only** #

Details

Receiver Date Name Phone Email CRL rep

Matters discussed Owner DD/MM/YY X X X X

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A. B. C. Conclusion:

Table C3.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

A. B. C. BPO Conclusion: X

APPENDIX D COMMUNICATIONS RECORDS Communications records are contained in the communication and consultation plan. CLG comments on this DWP are contained in Table 6 and the Independent peer review comments are included in Table 7 overleaf. Table 6: CLG review comments Date

CLG Member

Comment

Response Craig Fitzgerald (MDA)

11/12/2018

Danny Wells (3 Akiraho St)

Provided an overview of the CNV DWP. A summary of the demolition methodology was provided, along with a more detailed discussion about foundations concrete cutting and breaking activities because they are predicted to be the loudest activities and breaking can generate appreciable vibration locally. The figures in Appendix B were used to predict the noise levels received at each of the CLG members properties. SSCNVMPs were discussed, but are not needed for their properties due to the predicted noise levels.

Danny Wells

Asked if works would be 24/7

Section 5.2 sets out that the normal hours of work are during the daytime, Monday to Saturday.

Richard Coombes

Asked that buildings be demolished from north to south to provide acoustic screening to receivers south of the railway line during the early stages.

Buildings would provide interim screening until removed. However, the order of demolition is not known at this time. Nonetheless, local noise barriers would be used to supplement acoustic screening in accordance with Section 5.5 where appropriate.

Bear Park

Asked about noise and vibration effects on their operations.

Bear Park buildings are screened from the works by other buildings fronting the railway line. The playground is also screened from the works, with a narrow view to the corner of the western most site. Construction activities will be audible, but are predicted to comply with the noise and vibration limits without the need for an SSCNVMP. Loudest activity would continue to be trains passing. No material effects on their operations predicted.

Richard Coombes

Asked about potential noise and vibration effects at his ground floor occupancy approximately 30 â€“ 40m away.

Concrete breaking is predicted to readily comply with building damage thresholds, could be perceptible at times, but unlikely. Also noted that noise barrier screening is more effective for ground floor receivers.

Danny Wells

Asked about monitoring.

Advised that monitoring is undertaken to verify CNVMP implementation and measure levels, including the first occurrence of concrete breaking and cutting.

Richard Coombes (3 Akiraho St) Joslyn Skiffington (Bear Park â€“ 32 Akiraho St)

Overall, no changes to the CNVMP requested or deemed necessary.

Table 7: Independent peer review comments (22 Jan 2019) DWP Section

Comment

Response

2.4

Circumstances under which ‘normal’ hours might be exceeded should be stated, along with any corresponding management procedures.

Updated section

2.4

Highlighted details to be confirmed.

To be confirmed once the contractor is appointed

2.5

Clear reference labels for each receiver should be added to Figure 3.

Updated to identify the relevant receivers based on the noise modelling in Appendix B and SSCNVMPs

2.5

The commercial and industrial receivers are expected to have a wide range of sensitivity. A table with the nature of each receiver should be added.

No change. The relevant receivers have now been identified based on the change above. This level of detail is not required for other receivers where compliance is predicted

2.6

The statement that the CNV DWP has been prepared by Craig Fitzgerald is inconsistent with the report author named on the front cover.

Updated

2.6

Highlighted details to be added in Table 1.

To be confirmed once the contractor is appointed

3.1.2

The list of matters to be addressed by a SSCNMP should be amended to include all items listed in condition 37.4

It is not considered necessary to include the full Condition in this section. This section serves as a summary and refers to Condition 37 for what the SSCNVMP should cover. However, a cross reference to Appendix E which contains the full condition has been added

3.2.3

The list of matters to be addressed by a SSCVMP should be amended to include all items listed in condition 38.5

It is not considered necessary to include the full Condition in this section. This section serves as a summary and refers to Condition 38 for what the SSCNVMP should cover. However, a cross reference to Appendix E which contains the full condition has been added

4.1

Reference is made to effective noise barriers. It should be clarified that these generally do not provide 10 dB when receivers overlook the demolition site, as demonstrated by the acoustics modelling.

Updated

5.2

As above, either “normal construction hours” should be changed to “construction hours” or exemptions and controls for works at other times should be listed.

Updated section

5.2

It should be specified which parts of the overall site will contain demolition activity that may affect Mediaworks.

No change. This is addressed in Appendix B and the Mediaworks SSCNVMP

DWP Section

Comment

Response

5.5

Specific details of temporary barriers should be stated rather than options.

No change. This will be confirmed by the contractor once appointed.

5.6/5.7

“Avoidance” of certain works at night/evening and Sundays/public holidays is listed as a mitigation measure. This is outside the stated construction hours for all works but listing “avoid” implies it may otherwise be acceptable.

Changed “Avoid” to “No”

6.0

Highlighted details to be confirmed.

To be confirmed once the contractor is appointed

6.1

A process needs to be documented as to who identifies when upcoming activities might exceed noise limits, and advises the Communications Manager accordingly so that communications processes are initiated.

Included a line to show who has would be responsible for identifying potential exceedances.

7.2

Text in Figure 5 is missing, such that currently the flow chart cannot be followed.

Updated

Specific consultation requirements with Mediaworks in the preparation of the SSCVMP and the process for resolution of any disagreements should be summarised.

Have included topics that should be discussed during the consultation as well as information that needs to be contained in the consultation section of the SSCNVMP

The Mediaworks SSCNVMP does not comply with designation conditions 40.2, 40.3, 40.4, 40.5 & 40.8. While some conditions are referenced there are no details of how they will be implemented.

To be complete once the contractor is appointed. Many of these tasks cannot be completed sufficiently in advance. Framework of SSCNVMP provides for these conditions to be satisfied.

Highlighted details to be confirmed.

To be confirmed once the contractor is appointed

Table C1.2.2 only includes one of the vibration limits for commercial buildings from condition 33.1. The other limits should be added.

No change. MediaWorks is a commercial building with respect to condition 33.1. The table is a summary of the relevant limits, and therefore, the most conservative of the commercial building damage limits is included. Exceedance of this criterion will trigger review regardless of compliance.

C2/C3

These two draft SSCNVMPs do not contain sufficient details at this stage to allow review with respect to the designation conditions.

To be confirmed once the contractor is appointed and consultation is undertaken

APPENDIX E RELEVANT CONDITIONS Table 8 identifies the relevant CRL designation conditions and where they are addressed in the document. Table 8: CRL Conditions and CNV DWP section where addressed Condition Description

CNV DWP ref.

Communications – Notable Noise and Vibration Receivers

16.1

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

Section 3.2.3

16.2

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.

Section 3.2.3

Project Standards – Construction Noise

31.1

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

Monday to Saturday 0700 – 2200

Sundays and Public Holidays 0700 – 2200

At all other times 2200 – 0700

Occupied commercial and industrial buildings (including offices)

75 dB LAeq

75 dB LAeq 90 dB LAFmax

65 dB LAeq 1 80 dB LAFmax2

60 dB LAeq 75 dB LAFmax

Sensitive Noise and Vibration Receivers (excluding offices) Early Childhood Education Centres (whilst occupied during normal opening hours) Bear Park Early Childhood Education Centre at 32 Akiraho Street (whilst occupied during normal opening hours)

Section 3.1.1

35 dB LAeq in sleeping areas

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

Notes: 1. 60 dB LAeq for NoR 5 and NoR 6; and 2. 75 dB LAFmax for NoR 5 and NoR 6. 31.2

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

Project Standards - Blasting Overpressure and Vibration For the avoidance of doubt this condition only applies to NoR 6 where blasting is required

Sections 3.1.1 and 7.1

N/A

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) Type of Structure

Section 3.2.1

Short-term (transient) vibration1

Long-term (continuous) vibration PPV at the foundation at a PPV at PPV at horizontal plane frequency of horizontal plane of highest floor (mm/s) 1-10Hz 10-50Hz 50-100Hz of highest floor (mm/s) (mm/s) (mm/s) (mm/s) 20 20 – 40 40 – 50 40 10

Commercial/ Industrial Residential/ 5 5 – 15 15 – 20 15 5 School Historic or 3 3–8 8 – 10 8 2.5 sensitive structures 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. 33.2

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

Project Standards - Construction Vibration (Amenity)

34.1

Between the hours of 10pm and 7am vibration generated by construction activities (excluding blasting) shall not exceed:

Sections 3.2.1 and 7.2

N/A

(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. 34.2

Between the hours of 7am and 10pm vibration generated by construction activities (excluding blasting) shall not exceed:

Section 3.2.2

(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); 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.

Section 3.2.3

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).

Section 3.2.3

Project Standards – MediaWorks

35.1

The noise and vibration limits set out in Conditions 35.2 and 35.3 shall apply only during Sensitive Times. For the purposes of MediaWorks, Sensitive Times are defined as follows: (a) During scheduled live broadcasting (b) During emergency/breaking news live broadcasting (c) During scheduled recording sessions

Appendix C1.2

If the limits are complied with in Studio 1, the noise and vibration levels in all other Studios will be acceptable. For the avoidance of doubt, (a)-(c) above include sound checks as well as actual broadcast/recording time. 35.2

Noise Limits â€“ Studios The noise level (whether air borne or reradiated from ground vibration) from all construction sources as received inside Studio 1 shall not exceed 30 dB LAeq (5 min) and 33 dB LAeq (1 sec). These limits apply to the construction component of the total noise. However for up to two periods of tunnelling, each no more than 15 consecutive days, the noise limits may be up to 5 decibels higher (ie. 35 dB LAeq (5 min) and 38 dB LAeq (1 sec)) during Sensitive Times, other than during the Live Broadcasting Periods as follows:

Appendix C1.2

(a) Weekdays: 0600-0900 hours 1200-1230 hours 1730-1930 hours 2230-2330 hours (b) Christmas holiday season (Saturday prior to Christmas Day to Sunday following New Years Day inclusive) and weekends: 1730-1900 hours The Requiring Authority must give MediaWorks at least 12 days notice of the commencement of each such period. 35.2A

Rockbreaking shall not be used for tunnel excavation within 100m of the MediaWorks site during Sensitive Times unless compliance with the noise limits in Condition 35.2 can be demonstrated in accordance with the methodology set out in the SSCNVMP.

N/A

35.3

Vibration Limits â€“ Studios For the protection of studio camera image quality, the construction vibration level (including blasting) as received inside Studio 1 shall not exceed 0.1mm/s PPV. This limit may be elevated by agreement of both the Requiring Authority and MediaWorks where image quality is found to be unaffected.

Appendix C1.4

35.4

Noise level measurements inside Studio 1 shall be undertaken at a position that is representative of the level received within 2m from, and at a similar height to, the microphone of the main presenter(s).

Appendix C1.2

35.5

Noise level measurements inside Studio 1 shall be undertaken with all doors to the studio closed.

Appendix C1.2

35.6

For the protection of amenity, the construction vibration level as received inside office areas, meeting rooms and technical suites shall not exceed 1mm/s PPV (as received on the floor of the receiving room) when those spaces are in use.

Appendix C1.2

35.7

For the protection of sensitive equipment, the construction vibration level (including blasting) shall not exceed 200mg (2m/s2) between 5-500Hz. Levels are to be measured on the floor supporting the Sensitive Equipment.

Appendix C1.2

35.8

All attended noise and vibration measurements shall be undertaken by a suitably qualified and experienced expert.

Appendix C1.5

35.9

For the avoidance of doubt, the MediaWorks conditions (Conditions 35, 40 and 66) only apply for so long as television, radio and/or interactive media facilities broadcast from the MediaWorks site.

N/A

35.10

Blasting shall not occur during MediaWorks Sensitive Times (as defined in Condition 35.1). Blasting shall occur at times to be agreed with MediaWorks and as documented in the SSCNVMP.

Construction Noise and Vibration DWP

N/A

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.

This document

36.2

The Construction Noise and Vibration DWP shall:

Sections 3 & 5

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 c) 36.3

Identify methods to achieve best practicable option for mitigating adverse effects.

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

Sections 2 & 5

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

Section 5

c) Construction machinery and equipment to be used and their operating noise and vibration levels;

Section 4, Appendix B

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;

Section 2.5, 4, Appendix B

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

Section 4, Appendix C

f) The location of sensitive noise and vibration receivers;

Section 2, 4, Appendix C

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;

Section 6, Appendix D

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

Sections 6, 7, 8, Appendix C

i) Specific training procedures for construction personnel including;

Section 5

I. The project noise and vibration performance standards for construction (conditions 31, 32, 33 and 34); II. Information about noise and vibration sources within the construction area and the locations of sensitive noise and vibration receivers; and

III. Construction machinery operation instructions relating to mitigating noise and vibration; 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;

Sections 5, 6, 7, Appendix C

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:

Sections 4, 7, 8, Appendix C

I. Updating the predicted noise and vibration contours based on the final design and construction activities; 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; 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; 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; 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.

Section 6, Appendix C

Site Specific Construction Noise Management Plan (SSCNMP)

37.1

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.

Appendix C

37.2

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:

Sections 3, 4, Appendix C

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. 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.

Sections 7

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

N/A

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);

b) 21 Queen Street (Lot 1 DP 67723); c)

29 Customs Street West (Lot 7 DP 77037)

d) 188 Quay Street (Lot 5 DP 63972 and Lot 1 DP 78340); and e) 37.5

23-29 Albert Street (Lot 1 DP 116724).

SSCNMPs will identify: a)

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

Section 4, Appendix C

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;

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

37.6

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.

Site Specific Construction Vibration Management Plan (SSCVMP)

38.1

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.

Appendix C

38.2

Further to the Construction Noise and Vibration DWP in Condition 36, a SSCVMP shall be prepared:

Sections 3, 4, 6 Appendix C

Section 8

For any unoccupied buildings, 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 to Condition 17); and

d) For the properties listed in Condition 37.4. 38.3

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

Best practicable management of vibration must be applied; and

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.

Section 3

38.4

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.

Section 3

38.5

SSCVMPs will identify:

Section 4, Appendix C

The timing and duration of any exceedance;

b) Details of the type of activity giving rise to any 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 highvibration 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 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.

Notable Noise and Vibration Receivers

Section 8 & 9, Appendix C

For the avoidance of doubt, Conditions 39.5 and 39.6 do not apply to MediaWorks. 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

N/A

39.2

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.

N/A

39.3

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.

N/A

39.4

The SSCNVMP shall include:

N/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. In the case of MediaWorks this is set out in Condition 40;

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;

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;

39.5

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;

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;

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: a)

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

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.

Construction Noise and Vibration Management Plan â€“ Medial Works

N/A

Further to Condition 36, a SSCNVMP shall be prepared for the MediaWorks site implementing the project standards in Condition 35. 40.1

The MediaWorks SSCNVMP shall identify high noise or vibration plant and machinery, and list the relevant items that require testing in accordance with Condition 40.4 and 40.8.

Appendix C1.4

40.2

Prior to any demolition or construction commencing, the Requiring Authority shall undertake a noise survey to determine the Transmission Loss (TL) performance of the MediaWorks building envelope. This testing shall only be undertaken outside of Sensitive Times.

Appendix C1.4

40.3

Prior to any demolition or construction commencing, the Requiring Authority shall undertake a vibration survey to determine the transfer function of the MediaWorks

Appendix C1.4

building structure from ground vibration outside the building to reradiated noise in Studio 1. This testing shall only be undertaken outside of Sensitive Times. 40.4

All high noise plant and machinery to be used at a location where it is predicted to generate noise levels in excess of 3 dB below the limits specified in Condition 35.2 shall be tested prior to use, to determine its Sound Power Level (Lw) at a sufficient distance from the MediaWorks building to ensure compliance. These measured Lws shall be used to predict the noise level at the MediaWorks building faรงade(s) from proposed construction scenarios. The faรงade TL (refer Condition 40.2) shall then be applied to predict the noise levels in the relevant rooms.

Appendix C1.4

40.5

All high noise plant and machinery may not be used until Condition 40.4 is satisfied, taking into account the cumulative noise levels from active sources on the site.

Appendix C1.4

40.6

The Requiring Authority and its contractor, in conjunction with a suitably qualified expert, shall work collaboratively with MediaWorks during the preparation of a SSCNVMP to confirm the extent and management of adverse effects on MediaWorks.

Appendix C1.3

40.7

The SSCNVMP shall set out the requirements for monitoring, the number of monitors, the instrument location, any adjustments necessary if a proxy position is required and any other procedures or requirements that are necessary. The data shall be available in real time to the Requiring Authority, Auckland Council and MediaWorks.

Appendix C1.5

40.8

Prior to the use of any high vibration equipment to be used at a location where it is predicted to generate vibration levels greater than 75% of the Condition 33-35 limits relating to the MediaWorks building, the Requiring Authority shall undertake vibration measurements at a sufficient distrance from the MediaWorks building to ensure compliance. These measurements shall be used to determine minimum set-back distances from the building to avoid potential exceedances of the vibration limits in Conditions 35.3, 35.6, 35.7 and 35.8. Reradiated noise values in Studio 1 shall be calculated using the measured transfer function, as required by Condition 40.3. The results of the testing and the outcomes affecting construction operations shall be set out in the SSCNVMP

Appendix C1.3

40.9

The noise and vibration levels from construction shall be monitored to determine compliance with conditions 35.2 35.3, 35.6, 35.7 and 35.8 continuously by automated noise and vibration monitors located at positions that will represent the noise and vibration level in the relevant spaces and for the relevant noise and vibration limits. The SSCNVMP shall set out the requirements for monitoring, the instrument location, any adjustments necessary if a proxy position is required and any other procedures or requirements that are necessary including methods to exclude extraneous sources. The data shall be available in real time to the Requiring Authority, Auckland Council and MediaWorks.

Appendix C1.2

40.10

Monitoring to determine compliance or otherwise with Condition 35.6 relating to office amenity shall only be undertaken in response to complaints from MediaWorks. The measurements must be attended by a suitably qualified person.

Appendix C1.2

40.11

The SSCNVMP shall set out corrective action measures that must be adopted in situations where any of the noise and vibration limits in Conditions 35.2, 35.3, 35.6, 35.7 and 35.8 are exceeded and where the noise and/or vibration levels are unacceptable to MediaWorks. The corrective action measures must include the following:

Appendix C1.2

(a) Immediate cessation of the work(s) that is giving rise to the exceedance; (b) A procedure to require the implementation of whatever measures are necessary to reduce the noise or vibration levels; (c) A monitoring procedure to determine compliance (once the remediation works are complete); (d) A requirement to ensure that the work(s) responsible for the exceedance are not recommenced during Sensitive Times;

(e) A complaints procedure that is capable of effecting the immediate cessation of works including making a point of contact directly available 24 hours, seven days a week. 40.12

If there is a disagreement between the Requiring Authority and MediaWorks as to the content of the SSCNVMP, 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 matters set out in Condition 40.11 and any other matters in dispute in the SSCNVMP.

Appendix C1.2

40.13

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 MediaWorks and/or through the above certification process without the consent of MediaWorks. The works shall then be undertaken in accordance with the SSCNVMP confirmed by the Requiring Authority as part of the Outline Plan process.

Appendix C1.2

APPENDIX F ISCA REQUIREMENTS CRLL is seeking ISCA (infrastructure Sustainability Council of Australia) IS (infrastructure Sustainability) Rating for the whole project lifecycle where the requirements as per ISCA CRL IS Technical Manual – Mahi Rauora Aratohu - Version 1.2 are essential to achieve the Project’s sustainability goal (Reference to CRLL minimum requirements - Appendices 10, 23 and 24 of the contract documents). This Appendix includes IS requirements that are necessary to achieve a target level 2 of Dis-2 and Dis-3 ISCA credits. These requirements remain subject to change as the project goes forward. Hence, the below Table to be reviewed, amended (as and if needed) and confirmed to meet the target level that will be set and agreed upon. The relevant required evidence(s) to achieve the target to be provided at appropriate timing. ISCA Category

Target Level

Dis-2

Noise

Construction Requirements

How we Aim to achieve this

NZS 6803:1999 “Acoustics - Construction Noise” referred to in this DWP - is listed as an ISCA Approved Guideline Benchmark Measures to mitigate noise during construction and operation have been identified and implemented. AND Monitoring of noise is undertaken at appropriate intervals and in response to complaints during construction AND For construction, modelling and monitoring demonstrates no recurring or major divergences from the noise management process in ISCA approved noise guidelines.

Section 3.1.2 – for site specific noise management plans. Section 5 – for general mitigation measures Section 6.2 – Complaints Response Section 7.1 - Monitoring .

Evidence Design report, as-built drawings, environmental management plan, asset management plan. Monitoring reports. Dis-3

Vibration Benchmark Measures to mitigate vibration during construction and operation have been identified and implemented.

Section 3.2.1 – for building damage standards

AND

Section 3.2.3 – For site specific management plans.

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

Section 5 – For general mitigation measures

AND

Section 6.2 - Complaints

For construction, modelling and monitoring demonstrates no exceedances of vibration goals for structural damage to buildings and structures.

Section 7.2 Monitoring

AND No physical damage has been caused to any buildings or structures by vibration caused by construction. Evidence Design report, as-built drawings, environmental management plan, asset management plan. Monitoring reports.

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