Friday, 15 September 2017

Design Speed

The maximum safe speed of vehicles assumed for geometrical design of a highway is known as design speed

The design speed depend upon the following factors

1.Types and condition of road surface
2.structure of the road
3.nature and intensity of traffic
4.types of curve along the road
5.sight distance required
6.nature of the country

The design speed is the most importent factor controlling the geometric design elements of highways,the design speed is decided considering the overall requirments of highways.

In india different speed standards have been assigned depending upon the importance or class of the road.

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