connect grades of -3.1% and 3.7%. If this curve is to be a part of a highway designed with a speed limit of 70mph, determine the stopping sight distance (ft) of the vertical curve. Use exact solution (do not use the table). Round your answer to

connect grades of -3.1% and 3.7%. If this curve is to be a part of a highway designed with a speed limit of 70mph, determine the stopping sight distance (ft) of the vertical curve. Use exact solution (do not use the table). Round your answer to

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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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

An equal tangent vertical curve is intended to connect grades of -3.1% and 3.7%. If this curve is to be a part of a highway designed with a speed limit of 70mph, determine the stopping sight distance (ft) of the vertical curve. Use exact solution (do not use the table).

Round your answer to 3 decimal places.

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