A)An intersection approach has a capacity of 1600 vph. What is the likely queue at the end of an hour if the 15 minute vehicle arrivals are 350, 500, 300, and 500? B) What is the cumulative lost time per hour if the lost time per phase is 4 seconds and the intersection operates as a 4 phase 120 second cycle? C) A queue of 200 veh. is built up waiting to get into a national park prior to open. How long it will take to clear the queue if each vehicle takes 15 seconds, yet veh. continue to arrive at 60 vph?

A)An intersection approach has a capacity of 1600 vph. What is the likely queue at the end of an hour if the 15 minute vehicle arrivals are 350, 500, 300, and 500? B) What is the cumulative lost time per hour if the lost time per phase is 4 seconds and the intersection operates as a 4 phase 120 second cycle? C) A queue of 200 veh. is built up waiting to get into a national park prior to open. How long it will take to clear the queue if each vehicle takes 15 seconds, yet veh. continue to arrive at 60 vph?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

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

A)An intersection approach has a capacity of 1600 vph. What
is the likely queue at the end of an hour if the 15 minute
vehicle arrivals are 350, 500, 300, and 500?
B) What is the cumulative lost time per hour if the lost time
per phase is 4 seconds and the intersection operates as a 4
phase 120 second cycle?
C) A queue of 200 veh. is built up waiting to get into a
national park prior to open. How long it will take to clear the
queue if each vehicle takes 15 seconds, yet veh. continue to
arrive at 60 vph?
D) The allocated effective green time across 3 phases if
critical volumes are 300, 200 and 100 vehicles respectively if
you have a 75 second cycle. Assume Y+AR = tl = 5 sec/
phase.
E) A roadway has an estimated density of 50 vpmpl. What
percent of time is a highway detector covered if the detector
is 5 ft long? Assume 28 ft veh length.

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