A section of a two-lane rural highway consists of a -3% grade intersecting a +4.5% grade. The speed limit on the highway is 55 mph. The height of headlights of an average car is 2.4 feet with a beam angle of 1.50. Determine the length of sag vertical curve that joins the two grades, considering a safe stopping maneuver

A section of a two-lane rural highway consists of a -3% grade intersecting a +4.5% grade. The speed limit on the highway is 55 mph. The height of headlights of an average car is 2.4 feet with a beam angle of 1.50. Determine the length of sag vertical curve that joins the two grades, considering a safe stopping maneuver

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 19P

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