Open parking lots shall be completely separated from adjoining premises and public sidewalks by curbs or bumpers of concrete, masonry, steel, heavy timber, or other similar and equally substantial materials, and shall be securely anchored so as to stop motor vehicles. Curbs and bumpers shall be at least 8 inches (203 mm) high and 8 inches (203 mm) wide.
Openings in required perimeter curbs and bumpers shall be permitted only for drainage, for motor vehicle entrances and exits, and for pedestrian entrances and exits. The width of an opening for motor vehicle access shall not exceed the length of the curb cut, not including the lengths of the splays. When an opening for pedestrian access is adjacent to a motor vehicle access opening, the two openings shall be separated by a permanent and substantial post. In no case shall any pedestrian entrance or exit exceed 5 feet (1524 mm) in width.