Banking of roads means to construct a road in such a way so that its outter side lift in little bit upward direction. This is done to prevent accidents because on a levelled road if the speed increase from [urg]1/2 then the friction is unsufficent to provide centripital force and the car will skid off Thanks?
On a levelled road basically depends upon the coefficient of static friction but friction is not reliable as it changed as the change in the condition of tyre and road and other climatic condition so to add safety a curve is constricted with its outer edges are little raised above the inner edge and is called banking of curve