Question

Why are curved roads banked?​

Answer 1

To avoid the risk of skidding as well as to reduce the wear and tear of car tyres , the road surface at a bend is titled inward.

i.e. the outer side of the road is rised above it's inner side . This ia called banking of road...

Answer 2

Answer:

IN ORDER TO PROVIDE NECESSARY CENTRIPETAL FORCE WHICH IS REQUIRED FOR A SAFE TURN .

Explanation:

When a vehicle moves on a curved horizontal surface, friction force between wheels and road provides the necessary centripetal force. But friction force is enough sometimes like during rain as road is oily. Road should be made through then but it cause wear & tear of tyres. When centripetal force is less the vehicle skid. To eliminate this ,roads are banked.