Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 14, Problem 12P
To determine
The elevation of the base of the tower.
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A tower appears in two successive photo-graphs
taken at an altitude of 4000 m above datum. The
focal length of the camera is 160 mm. The length
of the air base is 300 m. The parallax for the top
and bottom of the pole are 72 mm and 63 mm
respectively. The height of the top of the tower
above its bottom is nearly
70m
Photogrammetry Question 3:
A tower appears in two successive photographs taken at an altitude of 4000 m above the datum. The focal
length of the camera is 160 mm. The parallax for the top and bottom of the pole is 72 mm and 63 mm
respectively. If the height of the tower is 25 m then calculate the length of the air base(m).
A flagpole
appears in two successive
photographs taken at an altitude of
2,000 m above datum. The focal length
of the camera is 120 mm and the
Length of the air base is 200 m. The
parallax for the top of the pole is
52,52 mm and for the bottom is 48,27
mm. Find the difference in elevation
between the top and the bottom of the
pole.
Chapter 14 Solutions
Traffic and Highway Engineering
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