Wikipedia
A curb cut ( U.S.), curb ramp, dropped kerb ( UK), pram ramp, or kerb ramp ( Australia) is a solid (usually concrete) ramp graded down from the top surface of a sidewalk to the surface of an adjoining street. It is designed for pedestrian uses and commonly found in urban areas where pedestrian activity is expected. In comparison with a conventional curb (finished at a right angle above the street surface) a curb cut is finished at an intermediate gradient that connects both surfaces, sometimes with tactile paving.
Usage examples of "curb cut".
The Mercedes lurched, brushing but not rebounding from the right-hand radius of the curb cut.
As we stopped at the curb cut before entering the street, LuEllen reached over and touched my hand on the steering wheel, while turning to look at Dace.