5. A highway containing a crest vertical curve (equal tangent) has a posted speed limit of 50mph. The length of the curve is 840.00ft and at a distance of 3 +51.00 stations from the PVC,the vertical offset is 3.20 ft. Determine if this curve is adequately designed for the postedspeed.

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Answered: A highway containing a crest vertical…

A highway containing a crest vertical curve (equal tangent mph. The length of the curve is 840.00ft and at a distance he vertical offset is 3.20 ft. Determine if this curve is adec peed.

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 18P

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Concept explainers

Curve setting

A curve is a turn that is provided horizontally or vertically in the design of highways, railways, and runways. A curve connects two straight lines that are separated by the deflection angle. It helps to change the direction and alignment of the highways, railway tracks, and runways. Therefore, the gradual change in their alignment is made by using a curve to provide comfort to the passengers and this also provides an easy turn to change the direction of the moving vehicle.

Question

5. A highway containing a crest vertical curve (equal tangent) has a posted speed limit of 50
mph. The length of the curve is 840.00ft and at a distance of 3 +51.00 stations from the PVC,
the vertical offset is 3.20 ft. Determine if this curve is adequately designed for the posted
speed.

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