Studies have shown that the traffic flow on a 2 lane highway adjacent to school can be described by the Greenshield's model. A length of 0.50 km adjacent to a school is described as a school zone and operates for a period of 25 minutes just before the start of school and just after the close of school. The posted speed limit for the school zone during its operation is 21 kph. Data collected at the site when school zone is not in operation show that the jam density and mean free for each lane is 119 veh/km and 65 kph respectively. If the demand flow on the highway at the time of the operation of the school zone is 95% of the capacity of the highway, calculate the following: 2.1 Traffic shockwave created by the operation of the school zone 2.2 The queue length of vehicles affected by the school zone operation 2.3 The number of vehicles affected by the school zone operation 2.4 The time the queue of vehicles takes for it to dissipate after the operation of the school zone 2.5 Plot the shockwaves showing capacity flow and jam density in the Q-k diagram

Studies have shown that the traffic flow on a 2 lane highway adjacent to school can be described by the Greenshield's model. A length of 0.50 km adjacent to a school is described as a school zone and operates for a period of 25 minutes just before the start of school and just after the close of school. The posted speed limit for the school zone during its operation is 21 kph. Data collected at the site when school zone is not in operation show that the jam density and mean free for each lane is 119 veh/km and 65 kph respectively. If the demand flow on the highway at the time of the operation of the school zone is 95% of the capacity of the highway, calculate the following: 2.1 Traffic shockwave created by the operation of the school zone 2.2 The queue length of vehicles affected by the school zone operation 2.3 The number of vehicles affected by the school zone operation 2.4 The time the queue of vehicles takes for it to dissipate after the operation of the school zone 2.5 Plot the shockwaves showing capacity flow and jam density in the Q-k diagram

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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Highway 6.2
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