Problem 2 A reversed curve is o connect two tangents which is parallel to each other and are 200 m apart with directions due east. There is an intermediate tangent of 200 m in between the reversed curve and the horizontal distance of P.C and P.T. measured parallel to the tangents is 800 m long. The P.C. of the reversed curve is on the upper tangent while the P.T. of the reversed curve is at the lower tangent. 1. Determine the tangent distance of each curve in meters. 2. Determine the common radius of the reverse curves.

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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.