Traffic Signal Coordination by Simple Progressive System on Selected Stretch of Ahmedabad

Abstract

The urban road network in Ahmedabad is 2600 km and it is mostly improbable to grow in near future, but the numbers of vehicle registration have enlarged by 24.59 Lakhs in last decade. As a result of this the traffic problems like delay, congestion, air pollution, fuel consumption are augmented and the signalized intersection are the utmost vital element. This paper signifies a technique of coordination for fixed time signals. It is essential to diminish delay at signalized intersections situated on stretch where through traffic movement is foremost. Signal coordination can be done by using the detectors at the intersections which uses real time data, but it is expensive. So, in this study an attempt is made to reduce the travel time, stopped delay and queue length by coordination of signalized intersection both ways without the detectors by optimizing the signal timing and the offset. C.G Road is considered one of the most important roads in Ahmedabad. The three signalized intersections namely Parimal cross road, Panchvati cross road and Tanishq cross road on the corridor was selected. The Dynamic PCU values reflects true nature of the vehicles, so in this study the Dynamic PCU values of vehicles were used. At each considered intersection present signal timing, geometric features, classified volume count, stopped delay, queue length spot speed study and optimum cycle length were measured.