188.8.131.52.2 Horizontal Openings in Sidewalks and Other Areas Exterior to the Building
(a) The clear opening in a sidewalk that is accessible to the general public when the sidewalk door or cover is open shall be such that the sidewalk permits a minimum 1200 mm (48 in.) wide unobstructed pedestrian path, which is not normally accessible to vehicular traffic.
(b) Hoistways shall not be located either wholly or partially in front of any entrance to a building.
(c) The side of the door opening nearest to any building wall or other obstruction shall be less than or equal to 100 mm (4 in.), or greater than 914 mm (36 in.), from the wall or obstruction.
(d) Horizontal openings in sidewalks or other areas exterior to the building shall be protected by hinged metal doors or vertically lifting covers having a nonslip upper surface. Such doors or covers shall not be used where the hoistway is located inside the building. Doors or covers shall be of sufficient strength to safely support a static load of not less than 1460 kg/m2 (300 lb/ft2), uniformly distributed.
(e) When in the closed position, doors shall be flush with the adjacent sidewalk or other surface.
(g) All openings between sidewalk door panels and frames shall be provided with gutters to collect rainwater. The gutters shall be piped rigidly to a discharge point exterior to the hoistway and pit or to the sump pit when provided and designed in accordance with 184.108.40.206.
(h) When subject to vehicular traffic, the doors or covers shall be designed to safely support the loads likely to be imposed on them.