ADAAG Manual

Parking Spaces [4.6.3]

For vans with side-mounted lifts, a combined width of almost 17 feet is often needed for the deployment and use of side-mounted lifts; ADAAG requires at least 16 feet. "Universal" parking spaces can be provided instead of separate standard and van spaces; (designated van spaces are not required under this design). Universal spaces are wider so that users can park to one side or the other as needed, including car drivers. The length of accessible spaces is not specified. Access aisles must be as long as the parking space.

A maximum slope of 2% is required in all directions for both the space and access aisle since level surfaces are important for wheelchair transfer to and from vehicles. For this reason, built-up curb ramps cannot project into access aisles. Recommendation: Connecting accessible routes should be configured so that people using wheelchairs, who may not be as visible to drivers backing out of spaces, do not have to travel behind other vehicles.