A descending grade of –1.7% intersects an ascending grade of +2.3% to connect a vertical parabolic curve. If the design length of the parabolic curve is 135 m, what is the required length of the sight distance? a. 187.5 b. 165.4 c. 155.8 d. 147.1

A descending grade of –1.7% intersects an ascending grade of +2.3% to connect a vertical parabolic curve. If the design length of the parabolic curve is 135 m, what is the required length of the sight distance? a. 187.5 b. 165.4 c. 155.8 d. 147.1

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 7P

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a. 187.5

b. 165.4

c. 155.8

d. 147.1

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