Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 14, Problem 9P
To determine
The scale of the first vertical aerial photograph and the flying height of both the photographs.
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A camera was equipped with a 152mm (6”) focal-length lens is used to take a verticalphotograph from a flying height of 2780m above mean sea level. If the terrain is flat and locatedat an elevation of 500m.a.) What is the scale of the photograph?b.) What would be the scale at mean sea level?
Question-
A vertical photograph was taken at an altitude of 2000 m above mean sea level. If the
scale of photograph for a terrain lying at an elevation of 250 m is 1: 1000. Find the focal
length of the camera.
Question 6
A road section of length 2km
scale 16 cm on a vertical
photograph. The focal length
of the camera is 320mm. If
the terrain is fairly level, then
the flying height will be
km.
Chapter 14 Solutions
Traffic and Highway Engineering
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