A traffic signal has a 60-second cycle length. For the travel direction of interest, the effective red and green times a

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A Traffic Signal Has A 60 Second Cycle Length For The Travel Direction Of Interest The Effective Red And Green Times A 1 (18.42 KiB) Viewed 31 times

A traffic signal has a 60-second cycle length. For the travel direction of interest, the effective red and green times are 30 seconds each, the arrival rate is constant at 20 vehs/min and the saturation flow (i.e., the queue discharge rate) is 1 veh/sec. a. Calculate the average delay (in seconds) for the travel direction of interest b. What is the maximum length of a queue (in vehicles)? c. Assume that works on the street are taking place downstream of the intersection so that only 20 vehs/min (in the direction of interest) can pass. Calculate the average delay [sec] caused by the street work to a vehicle leaving the intersection. Assume that the queue at the downstream restriction never backs-up into the intersection.