Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 14, Problem 8P
To determine
The height at which the aircraft should be flown.
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An aerial photograph of a terrain is taken at a scale of 1:7500, For 4000 m altitude of the flight above mean sea level and 30 cm focal length of the camera, the expected average elevation of the terrain will be____meter.
Calculate the value of the intermediate sight distance (in meters) for a highway with design speed of 65 kph, assume f = 0.36. Answer in 3 decimal places.(Hint: Stopping sight distance is just half of the intermediate sight distance.)
Aerial photography is to be taken of a tract of land that is X-mi square. Flying height will be H ft above average terrain, and the camera has focal length f. If the focal plane opening is 9 × 9 in., and minimum sidelap is 40 %, how many flight lines will be needed to cover the tract for the data given below?
Part A:
Express your answer as an integer.
X=9; H=3600ft; f=152.40mm
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Traffic and Highway Engineering
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