503.3 – Access Aisle

503.3 Access Aisle.
Passenger loading zones shall provide access aisles complying with 503 adjacent to the vehicle pull-up space.  Access aisles shall adjoin an accessible route and shall not overlap the vehicular way.

503.3.1 Width.
Access aisles serving vehicle pull-up spaces shall be 1525 mm (60″) wide minimum.

503.3.2 Length.
Access aisles shall extend the full length of the vehicle pull-up spaces they serve.

503.3.3 Marking.
Access aisles shall be marked so as to discourage parking in them