The figure shows vehicles traveling at constant speeds on a two-lane highway between sections X and Y with their positions and speeds obtained at an instant of time by photography. An observer located at point X observes the four vehicles passing point X during a period of T second. The velocities of the vehicles are measured as 45, 45, 40, and 30 mph (miles per hour), respectively. Calculate the flow, density, time mean speed, and space mean speed. Note that 1 mile is equal to 5280 feet. 15' 20' 30' 20' 35' 20' X 30 mi/h 40 mi/h 45 mi/h D C B 200 85' 20' 55' 45 mi/h A Direction of flow

The figure shows vehicles traveling at constant speeds on a two-lane highway between sections X and Y with their positions and speeds obtained at an instant of time by photography. An observer located at point X observes the four vehicles passing point X during a period of T second. The velocities of the vehicles are measured as 45, 45, 40, and 30 mph (miles per hour), respectively. Calculate the flow, density, time mean speed, and space mean speed. Note that 1 mile is equal to 5280 feet. 15' 20' 30' 20' 35' 20' X 30 mi/h 40 mi/h 45 mi/h D C B 200 85' 20' 55' 45 mi/h A Direction of flow

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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Question

The figure shows vehicles traveling at constant speeds on a two-lane highway between
sections X and Y with their positions and speeds obtained at an instant of time by photography.
An observer located at point X observes the four vehicles passing point X during a period of T
second. The velocities of the vehicles are measured as 45, 45, 40, and 30 mph (miles per hour),
respectively. Calculate the flow, density, time mean speed, and space mean speed. Note that 1 mile
is equal to 5280 feet.
15' 20' 30' 20' 35' 20'
X
30 mi/h 40 mi/h 45 mi/h
D C
B
300'
85'
20' 55
45 mi/h Direction
A
of flow

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