The arrival of vehicles at a specified roadway location is Poisson distributed. The flow count shows 540 veh/hr at this roadway location. - What is the probability that headway between successive vehicles will be less than 6 seconds? - What is the probability that headway between successive vehicles will be greater than than 12 seconds? - What is the probability that headway between successive vehicles will be between 6 and 12 seconds? - Draw the probability density function of the exponential distribution and show the key items in the graph. - Draw the cumulative distribution of the exponential distribution and show the key items in the graph

The arrival of vehicles at a specified roadway location is Poisson distributed. The flow count shows 540 veh/hr at this roadway location. - What is the probability that headway between successive vehicles will be less than 6 seconds? - What is the probability that headway between successive vehicles will be greater than than 12 seconds? - What is the probability that headway between successive vehicles will be between 6 and 12 seconds? - Draw the probability density function of the exponential distribution and show the key items in the graph. - Draw the cumulative distribution of the exponential distribution and show the key items in the graph

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter4: Traffic Engineering Studies

Section: Chapter Questions

Problem 8P

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Highway Safety

Proper highway safety refers to the methods or rules that prevent highway travelers from being killed or severely injured. Proper highway safety measures help to protect motorists, cyclists, pedestrians, passengers on public transport, and so on.

Question

The arrival of vehicles at a specified roadway location is Poisson distributed. The flow count shows 540 veh/hr at this roadway location.

- What is the probability that headway between successive vehicles will be less than 6 seconds?

- What is the probability that headway between successive vehicles will be greater than than 12 seconds?

- What is the probability that headway between successive vehicles will be between 6 and 12 seconds?

- Draw the probability density function of the exponential distribution and show the key items in the graph.

- Draw the cumulative distribution of the exponential distribution and show the key items in the graph.

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