International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
Design of traffic signal on NH-12 near Barkatullah University, Bhopal District of Madhya Pradesh Atul Singh Suman1, Dr. Y P Joshi2 1 Student
– M.E. Civil (transportation) 2 Professor of civil engineering S.A.T.I., Vidisha (M.P), India ---------------------------------------------------------------------***------------------------------------------------------------------3 Department
Abstract - During the past decade, the major town has under gone hazard growth of Industrialization, urbanization of the country. To manage travel demand the intersection should be given least resistance to traffic flow so that the travel time can become minimized. The present requirement of urban cities is to absorb the growing traffic demand but within the same physical aspect at the intersection. These days all around the globe efforts are being put forward to protect the environment. In this paper, an attempt has been done to study the different intersections, so minimize the delays at these intersections and simultaneous improve the level service. A traffic signal can be synchronized so that a vehicle starting at one end of the Street and traveling at Pre assigned speed can go to another end without stopping for the red light. At each intersection, the existing traffic has been calculated and then signal designed. Improve the level of service at intersections and to minimize delay, optimized signal has been synchronizing and estimated the benefits.
2. LITERATURE REVIEW
2.1 Introduction A signal design is made by measuring the individual speeds of the vehicles passing a given point (spot) on a street or highway. These individual speeds are used to calculate the speed distribution of the entire traffic stream at that location under the conditions prevailing at the time of study and also calculate individual PCU per hour.
2.2 Advantages of Signaling Properly designed traffic signals have the following uses: A) They provide orderly movement of traffic and increase the traffic handling capacity of most of the intersections at grade. B) They reduce certain types of accidents, notably the right angled collisions. C) Pedestrians can cross the roads safely at the signalized intersection. D) The signals allow crossing of the heavy traffic flow with safety. E) When the signal system properly coordinates, there is a reasonable speed along the major road traffic. F) Signals provide a chance to crossing traffic of minor road to cross the path of continuous the flow of traffic stream at reasonable intervals of time.
Key Words: Signal Design, Webster method, PCU, Field Studies, Straight road, Timing 1. INTRODUCTION Traffic signals may defined as power operated signal displays used to regulate or worn traffic. In a broad sense, traffic signals include displays for intersection control, flashing beacons, lane directional signals, and ramp metering signals. When traffic signals are installed and properly operated, they can provide specific advantages in traffic control and safety. Signal installations, however, also have certain disadvantages that may or may not apply at a particular location. The objectives of traffic signals are many, such as they reducing the frequency of certain types of accidents, increasing traffic handling capacity of the intersection, bring but considerable economy over manual control at intersections where alternate assignment of right of way is required and finally, promoting driver confidence by assigning right of way. On the other hand, signal installation at intersections increases the intersection total delay and fuel consumption and Performance Index especially during the off peak periods.
Š 2017, IRJET
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2.3 Signal Design Procedure The signals design procedure involves six major steps. They include the
(a) Phase design, (b) Determination of amber time and clearance time, (c) Determination of cycle length, (d) Apportioning of green time, (e) Pedestrian crossing requirements, and (f) The performance evaluation of the above design.
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