curb cut

noun2

1. •
   (US) A small ramp cut into a curb to allow wheelchairs, baby carriages, bicycles, etc. to more easily enter or leave a sidewalk.
2. •
   A lowered area of curb to allow vehicles to access driveways or approaches, a drop kerb.

   • Curb cuts or beginning of approaches shall not be nearer the intersection than the extension of the property line between 20 ft and 12 ft controls. — 1959