. Two tangents having azimuths of 240° ans 282° are connected by an 80-m spiral curve with a º circular curve. The width of the roadway is 10m. If the design velocity is 60 kph, 1.) Evaluate the external distance. .) Evaluate the length of spiral tangents. :) Evaluate the difference in lengths between the long and short tangents.

Q: 14. The ruling minimum radius of horizontal curve of a national highway in pljain terrain for a…

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A:

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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.