(a) The following relationship between traffic speed and flow applies to a particular urban highway:- q=192u - 44u In u where q = flow in veh/hr. u = speed in km/hr. Calculate the following:- (i) (ii) (iii) The mean speed when the highway flow is at maximum capacity The capacity of the highway The density at maximum flow capacity
(a) The following relationship between traffic speed and flow applies to a particular urban highway:- q=192u - 44u In u where q = flow in veh/hr. u = speed in km/hr. Calculate the following:- (i) (ii) (iii) The mean speed when the highway flow is at maximum capacity The capacity of the highway The density at maximum flow capacity
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter6: Fundamental Principles Of Traffic Flow
Section: Chapter Questions
Problem 25P
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![1. (a) The following relationship between traffic speed and flow applies to a particular urban highway:-
q = 192u - 44u In u
where q = flow in veh/hr.
u= speed in km/hr.
Calculate the following:-
(i)
(iii)
The mean speed when the highway flow is at maximum capacity
The capacity of the highway
The density at maximum flow capacity
The space mean free speed
The jam density
(b) Plot diagrams to show the relationships between flow, speed and density given Question 1(a). Use these
diagrams to describe what happens when flow changes from uncongested to congested along the highway.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcab917b3-fd22-4025-b1e3-d9d12f48dd8b%2F8e51dc02-72d0-4993-be7c-d446d4c0bfdd%2Fzxe8tw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. (a) The following relationship between traffic speed and flow applies to a particular urban highway:-
q = 192u - 44u In u
where q = flow in veh/hr.
u= speed in km/hr.
Calculate the following:-
(i)
(iii)
The mean speed when the highway flow is at maximum capacity
The capacity of the highway
The density at maximum flow capacity
The space mean free speed
The jam density
(b) Plot diagrams to show the relationships between flow, speed and density given Question 1(a). Use these
diagrams to describe what happens when flow changes from uncongested to congested along the highway.
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