1.

The following observations were made for a two phase traffic signal: Road Average normal flow (veh/hr) Saturation flow (veh/hr) A 400 1250 B 250 1000 The all red time required for pedestrian crossing is 12 sec and amber time is 2.0 sec for each lane. The optimum cycle time will be _______ sec. [Use Webster's approach]67.4

Answer» The following observations were made for a two phase traffic signal:




















Road Average normal flow (veh/hr) Saturation flow (veh/hr)
A 400 1250
B 250 1000



The all red time required for pedestrian crossing is 12 sec and amber time is 2.0 sec for each lane.

The optimum cycle time will be _______ sec. [Use Webster's approach]
  1. 67.4


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