An isolated three-phase traffic signal is designed by Webster's method. The critical flow ratios for three phases are 0,20, 0.30, and 0.25 respectively, and Lost time per phase is 4 seconds. The optimum cycle length (in seconds) is
An isolated three-phase traffic signal is designed by Webster's method. The critical flow ratios for three phases are 0,20, 0.30, and 0.25 respectively, and Lost time per phase is 4 seconds. The optimum cycle length (in seconds) 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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![An isolated three-phase traffic signal
is designed by Webster's method. The
critical flow ratios for three phases
are 0,20, 0.30, and 0.25 respectively,
and Lost time per phase is 4 seconds.
The optimum cycle length (in seconds)
is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd8f9edbf-9401-415b-96e4-ba1586ce4f2b%2Fa7e063d8-3832-4748-8a8a-68da43a48525%2F5rdrxf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An isolated three-phase traffic signal
is designed by Webster's method. The
critical flow ratios for three phases
are 0,20, 0.30, and 0.25 respectively,
and Lost time per phase is 4 seconds.
The optimum cycle length (in seconds)
is
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