The camber
The surface of a Roman road was curved to make water run off.
A rond-point.
A wheel is circular to reduce friction with the road surface, and to allow a vehicle to move smoothly forward.
a road......?
Divider
Surely it must be the camber?
A crown.
A curve in the road is a bend. If the bend is very severe, it is a hairpin-bend.
No, curve is not an adjective.Curve is a verb, e.g. The road will curve to the left up ahead.It can also be a noun, e.g. There is a sharp curve in the road up ahead.The adjectival form of curve is curved, e.g. That road is sharply curved.Curved can also be a verb, e.g. The road curved to the left.
A bend in a road is commonly referred to as a curve. It is a change in the road's direction, typically caused by factors such as the terrain or design of the road.
A banked curve uses the force of gravity to help keep vehicles on the road while turning by tilting the road surface inward towards the center of the curve. This tilt helps to counteract the centrifugal force that pushes the vehicle outward during the turn, allowing gravity to assist in keeping the vehicle on the road.
Loose chippings are loose gravel or stone fragments which have become detached from a road surface and form a hazard to vehicles using that road
Banked road.
a curve... Well that could be an answer however it is not possible to have a bend or a curve 'in' a straight road. A curve or bend is, by definition, after the end of one straight section and before the beginning of the next; so it can not be 'in' a straight road.
The maximum speed at which a car can safely negotiate a frictionless banked curve does not depend on the mass of the car. It depends on the angle of the bank, the radius of the curve, and the coefficient of static friction between the tires and the road surface.
The centripetal force that allows a car to move around a sharp curve on a roadway is provided by the friction between the tires and the road surface. This frictional force acts inwards towards the center of the curve, providing the necessary centripetal force for the car to turn without skidding off the road.
The curve in the road was thick with ice, causing many accidents on the highway.