Answered: What is the time-mean speed? Present…

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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A) What is the time-mean speed? Present your answer in units of [feet/sec] to two decimal places?

B) What is the spacing between the vehicles in Image 1? Present your answer to the nearest foot.

C) I calculate that the (average) density obtained from these images is 18.2 [veh/mi]. Assume that this value is correct, even if I made a mistake.
If a loop detector sensing these vehicles was occupied 5% of the time, what is the average length of the vehicles? Present your answer in units of feet to one decimal place.

The distances in feet from some X = 0 reference point of two vehicles appearing in two air photos taken
two seconds apart are shown in Table 6.
Table 6. Distances in feet of two vehicles from reference X = 0
in two images, taken two (2) seconds apart
Image 2
320 [ft]
600 [ft]
Image 1
500 [ft]
800 [ft]
Veh 1
Veh 2

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