An expressway off-ramp consisting of a single lane leads directly to a tollbooth. The rate of arrival of vehicles at the expressway can be considered to be Poisson with a www.Civil08.com - The Download Monster Chapter 6 Fundamental Principles of Traffic Flow 263 mean of 50 veh/h, and the rate of service to vehicles can be assumed to be exponen- tially distributed with a mean of 1 min. (a) What is the average number of vehicles waiting to be served at the booth (that is, the number of vehicles in queue, not including the vehicle being served)? (b) What is the length of the ramp required to provide storage for all exiting vehicles
An expressway off-ramp consisting of a single lane leads directly to a tollbooth. The rate of arrival of vehicles at the expressway can be considered to be Poisson with a www.Civil08.com - The Download Monster Chapter 6 Fundamental Principles of Traffic Flow 263 mean of 50 veh/h, and the rate of service to vehicles can be assumed to be exponen- tially distributed with a mean of 1 min. (a) What is the average number of vehicles waiting to be served at the booth (that is, the number of vehicles in queue, not including the vehicle being served)? (b) What is the length of the ramp required to provide storage for all exiting vehicles
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter9: Capacity And Level Of Service For Highway Segments
Section: Chapter Questions
Problem 21P
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