Example 2 A project area is (16 km) long in the cast-west direction and (10.5 km) wide in the north-south direction (see Fig. 14-5). It is to be covered with vertical acrial photography having a flying height 1830 m. End lap and side lap are to be 60 and 30 percent, respectively. A (152.4-mm- ) focal-length camera with a (23 *23 cm) square format is to be used. Prepare the flight map on a hase map whose scale is 1:24,000, and compute the total number of photographs necessary for the project. 1690 (

Example 2 A project area is (16 km) long in the cast-west direction and (10.5 km) wide in the north-south direction (see Fig. 14-5). It is to be covered with vertical acrial photography having a flying height 1830 m. End lap and side lap are to be 60 and 30 percent, respectively. A (152.4-mm- ) focal-length camera with a (23 *23 cm) square format is to be used. Prepare the flight map on a hase map whose scale is 1:24,000, and compute the total number of photographs necessary for the project. 1690 (

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter14: Highway Surveys And Location

Section: Chapter Questions

Problem 10P

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Similar questions

Images a, b, and c of ground points A, B, and C appear on a vertical photograph taken from a flying height of 2625 m above datum. A 153.16-mm-focal-length camera was used. Points A, B, and C have elevations of 407 m, 311 m, and 379 m above datum, respectively. Measured photo coordinates of the images are xa = –60.2 mm, ya = 47.3 mm, xb = 52.4 mm, yb = 80.8 mm, xc = 94.1 mm, and yc = – 79.7 mm. Calculate the horizontal lengths of lines AB, BC, and AC and the area within triangle ABC in hectares.
The elevation of points L is 260ft, that of point is k is 300ft and point M is 800ft, that of point is N is 520ft the flying height above sea level is 1769ft and the focal length of the camera is 8.23 inch determine the scale of the photograph along the line ao along the be and at point d, expressing each scale as a number of feetcorres ponding to 1 inch,
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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?
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The elevation of points O and a is 267ft, that of point is Band Cis 52 4ft and that of D is 820ft the flying height above sea level is 1769ft and the focal length of the camera is 8.23 inch determine the scale of the photograph along the line ao along the bc and at point d ,expressing each scale as a number of feetcorres ponding to 1 inch,
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