Vehicles arrive at a toll system at random at an average rate of 12 vehicles per minute. If there are 2 toll booths each at random at an average of 6 seconds after services are done for every vehicle at the toll system, calculate the following: 1. Queuing characteristics 2. If one toll ticket booth is closed and service time is reduced by 3 seconds, what are the Queuing characteristics? 3. Plot the arrival distribution curve for the traffic conditions stated above.

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter2: Transportation Systems And Organizations
Section: Chapter Questions
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Vehicles arrive at a toll system at random at an average rate of 12 vehicles per minute. If there are 2 toll
booths each at random at an average of 6 seconds after services are done for every vehicle at the toll
system, calculate the following:
1. Queuing characteristics
2. If one toll ticket booth is closed and service time is reduced by 3 seconds, what are the
Queuing characteristics?
3. Plot the arrival distribution curve for the traffic conditions stated above. 

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