In a three-phase signal system design for a four-leg intersection, the critical flow ration for each phase are 0.18. 0.32 and 0.22. The total loss time in each of the phases i 2s. As per Webster's formula, the optimal cycle length (in s, round off to the neares integer) is

In a three-phase signal system design for a four-leg intersection, the critical flow ration for each phase are 0.18. 0.32 and 0.22. The total loss time in each of the phases i 2s. As per Webster's formula, the optimal cycle length (in s, round off to the neares integer) is

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter8: Intersection Control

Section: Chapter Questions

Problem 17P

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Concept explainers

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.

Question

In a three-phase signal system design for a four-leg intersection, the critical flow ratios
for each phase are 0.18. 0.32 and 0.22. The total loss time in each of the phases is
2s. As per Webster's formula, the optimal cycle length (in s, round off to the nearest
integer) is

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Quest... In a three-phase signal system design for a four- leg intersection, the critical flow ratios for each phase are 0.18, 0.32, and 0.22. The total loss time in each of the phases is 2 s. As per Webster's formula, find the optimal cycle length.
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