1) 1) A section of highway has the following flow-density relationship:q-50k-0.156k²What is the capacity (maximum flow) of the highway section, the space mean speed at capacity,and the density when the traffic flow on the highway is at one-quarter of its capacity?2) An observer has determined that the time headways between successive vehicles on a sectionof highway are exponentially distributed (arrival of vehicle is Poisson distribution) and that 60%of the headways between vehicles are 13 seconds or greater. If the observer decides to counttraffic in 30-second time intervals, estimate the probability of the observer counting exactly fourvehicles in an interval.

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1) 1) A section of highway has the following flow-density relationship: q-50k-0.156k² What is the capacity (maximum flow) of the highway section, the space mean speed at capacity, and the density when the traffic flow on the highway is at one-quarter of its capacity?

1) 1) A section of highway has the following flow-density relationship: q-50k-0.156k² What is the capacity (maximum flow) of the highway section, the space mean speed at capacity, and the density when the traffic flow on the highway is at one-quarter of its capacity?

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

Capacity and Level of Service at Intersections

The term capacity is associated with transportation engineering. Capacity helps to understand how many pedestrians or vehicles can be handled by a transport facility. Level of service is also a term associated with transportation engineering. The level of service indicates the performance of the transport facility.

Question

1) 1) A section of highway has the following flow-density relationship:
q-50k-0.156k²
What is the capacity (maximum flow) of the highway section, the space mean speed at capacity,
and the density when the traffic flow on the highway is at one-quarter of its capacity?
2) An observer has determined that the time headways between successive vehicles on a section
of highway are exponentially distributed (arrival of vehicle is Poisson distribution) and that 60%
of the headways between vehicles are 13 seconds or greater. If the observer decides to count
traffic in 30-second time intervals, estimate the probability of the observer counting exactly four
vehicles in an interval.

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