ADAAG Manual

Location [4.6.2] and Dispersion

Accessible spaces required for one lot can be located in another where equal or greater access is achieved. For example, spaces for an out-lying lot can be placed in a lot closer to the building served since accessible spaces must be located on the shortest accessible route to an accessible facility entrance. Recommendation: Accessible routes that cross vehicular ways should be marked as a crossing. Since people who use wheelchairs may not be as visible from a vehicle, it is recommended that accessible routes be configured to prevent or minimize wheelchair travel behind parked vehicles.

Accessible parking must be dispersed at buildings with multiple accessible entrances (especially important at large facilities such as malls and airports) and should be dispersed among multiple buildings on the same site even where lots are shared. In the case of strip shopping centers, however, accessible spaces are not required at each tenancy entrance, but should be dispersed to minimize travel distances.