Question

1. A one-way arterial street has a speed limit of 35mph and an average operating

    speed of 30mph with four two phase traffic signals evenly spaced at 660 feet

1. Each phase has a 5 second clearance interval. If the traffic signals are

    operating with a 60/40 split in favor of the arterial street, what are the offsets for

    intersections 2, 3, and 4 if the green indication at intersection 1 begins at interval

    6 of a 90-second cycle?

1. 21, 36 and 51
2. 19, 32 and 45
3. 70, 85 and 10
4. 68, 81 and 94

2. Using the operating data from problem no. 1, if intersection 2 detects the

     presence of vehicles on the side street and it takes 20 seconds of green time to

     serve the waiting vehicles, at what point in the cycle does the traffic signal turn

     green for the vehicles traveling on the arterial street?

1. 10
2. 21
3. 19
4. 59

Answer 1

ANSWER::

1)

what are the offsets for

    intersections 2, 3, and 4 if the green indication at intersection 1 begins at interval

    6 of a 90-second cycle?

Ans:: 21, 36 and 51

Option:: (A) is correct...........

2)

what point in the cycle does the traffic signal turn

     green for the vehicles traveling on the arterial street?

Ans:: Traffic signal turn green at 19

Option:: (C) is correct..........

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