A symmetrical parabolic curve has tangent grades of +2.8% and -1.6%. An object 105mm high at the opposite side wad sighted by a motorist when his eyesight is 1.5m above the roadway. What is the length of the curve if the object is 130m from the motorist?

A symmetrical parabolic curve has tangent grades of +2.8% and -1.6%. An object 105mm high at the opposite side wad sighted by a motorist when his eyesight is 1.5m above the roadway. What is the length of the curve if the object is 130m from the motorist?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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.

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