The common tangent BC of a reverse curve is 280 m and has an azimuth of 310 degrees. AB is tangent of the first curve whose azimuth is 250 and a distance of 320 m while CD is tangent of the second curve whose azimuth is 210 degrees and a distance of 300 m. If the radius of the second curve is 190 m, determine the following: A. radius of the first curve B. length of the curve from PC to PT

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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.