An arterial road is to be connected to a frontage road by a reverse curve with parallel tangents. The distance between the centerline of the two tangent section is 18 m. The PC of the curve is located at station (38+125.31) and the central angle of each of the component curves is 25°. Determine the radius of each of the two curves in the reverse curve if they have the same radius and central angle. Determine the station of PT. Determine the maximum speed to be allowed on this curve if the superelevation rate is 8%.

Q: he perpendicular distance from point A on the simple curve to point B on the tangent that passing…

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Q: It is desired to replace the compound curve with a simple curve that will be tangent to the three…

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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.