Q2: At grade intersection with width 15 m, controlled by 3 phases traffic signals. A percentile speed of approach traffic is 18 m/ sec. if you know that, lost time per phase 4 sec, available phase efficiency =0.65, the percentage of time at saturation level for each phase 33%, 37.5%, 29.5% respectively. Determine: a. the amber time for each phase. b. the time that the vehicle spent in each approach. Assume the length of standard vehicle 6 m. Approach 1 Controller green time (Sec.) 22 25 20 3, 2.

Q2: At grade intersection with width 15 m, controlled by 3 phases traffic signals. A percentile speed of approach traffic is 18 m/ sec. if you know that, lost time per phase 4 sec, available phase efficiency =0.65, the percentage of time at saturation level for each phase 33%, 37.5%, 29.5% respectively. Determine: a. the amber time for each phase. b. the time that the vehicle spent in each approach. Assume the length of standard vehicle 6 m. Approach 1 Controller green time (Sec.) 22 25 20 3, 2.

Structural Analysis

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ISBN:9781337630931

Author:KASSIMALI, Aslam.

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Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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

Q2: At grade intersection with width 15 m, controlled by 3 phases traffic
signals. A percentile speed of approach traffic is 18 m/ sec. if you know that,
lost time per phase = 4 sec, available phase efficiency =0.65, the percentage of
time at saturation level for each phase 33%, 37.5%, 29.5% respectively.
Determine:
a. the amber time for each phase.
b. the time that the vehicle spent in each approach.
Assume the length of standard vehicle = 6 m.
Approach
3
Controller green time (Sec.)
22
25
20

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