Alternate Title: Americans with Disabilities Act Design Requirements for Accessible Egress
"The ADA covers a wide variety of facilities, including places of public accommodation, commercial facilities, and state and local government facilities. The Board's ADA Accessibility Guidelines (ADAAG), which primarily cover new construction and alterations, include specifications for accessible means of egress, emergency alarms, and signage. Model building codes, life safety codes, and state access codes also address these and other elements related to emergency egress. ADAAG's criteria for accessible means of egress, like those in other building requirements, address both the required number and the technical specifications. The minimum number of egress routes required to be accessible is based on life safety code requirements for means of egress. Most of the criteria for accessible routes, such as width and the treatment of elevation changes, are applied to accessible means of egress to ensure access for persons with disabilities, including those with mobility impairments. Multi-story buildings pose a particular challenge to accessible means of egress since elevators, the standard means of access between floors, are typically taken out of service in emergencies for safety purposes. ADAAG addresses this situation through requirements for areas of rescue assistance or horizontal exits. Evacuation elevators, which are recognized by the model building codes but not the current ADAAG, offer an additional solution."
United States Access Board: http://www.access-board.gov/