Accessible
Last updated: 10-15-2008
Overview
"We hold these truths to be self-evident: that all men are created equal..."
- Declaration of Independence, July 4, 1776
In daily life, as we maneuver through society, nothing is more important yet taken for granted more often than access. For millions of people with disabilities, the access that most of us take for granted is difficult, impossible, or achievable only with the intervention of a third party. We live in what is considered an independent society, yet independent access to programs, facilities, and employment are not easily achievable by many. Physical access is historically the arbiter of success and the source of opportunity in education, employment, and social freedom. Thus, accessibility is a civil rights issue for many people with disabilities and for our society. See the History of Accessible Building Design to learn more.
Definition and Goals of Accessible Design

(Courtesy of Bill Brack)
If we live long enough, all of us may eventually have a disability that requires a modification of the built enviroment. The number of Americans having a disability is projected to grow rapidly as our population ages. One outgrowth of this is that the line between who is and who is not a person with a disability will steadily erode. We must redefine and redirect our traditional understanding of designing for accessibility to not only include those persons permanently disabled, but also those temporarily disabled due to an injury as well as any other potentially debilitating condition.
The Accessible branch of the WBDG is designed primarily to provide insight and raise awareness on accessible design issues. For information about compliance with accessibility guidelines and standards for a particular facility, contact the Department of Justice or the U.S. Access Board. The Access Board is an independent federal agency devoted to accessibility for people with disabilities. Key responsibilities of the Board include developing and maintaining accessibility requirements for the built environment, transit vehicles, telecommunications equipment, and electronic and information technology; providing technical assistance and training on these guidelines and standards; and enforcing accessibility standards for federally funded facilities. For additional resources, see the Access Board's Links Page.
Principles and a process that support accessible design include:
- Know what standards and laws to apply.
- Issues with lease vs. owning a building
- Differences across agencies, etc.
- Plan for access
- Consider access early in the process and throughout all phases of the project.
- Identify conflicts and synergies in context with other design objectives
- Examples might include: bollards as a way to address safe/secure and its impact on access and aesthetics; ramps vs. stairs for functional and access and aesthetics, etc.; retrofitting a historic building to meet access and historic preservation issues at the same time
- Provide Equal Access
Accessible design benefits all of us at some point in our lives. The goal of accessible design is to provide equal use of the built environment for all people. - Plan for Flexibility: Be Proactive
Being proactive by planning for flexible design features and products will increase the likelihood of providing equal access over the life cycle of the facility.
Note: Information in these Accessible pages must be considered together with other design objectives and within a total project context in order to achieve quality, high-performance buildings.
Emerging Issues
Revision of ABA and ADA Accessibility Guidelines
The U.S. Access Board's guidelines issued under the Americans with Disabilities Act (ADA) and the Architectural Barriers Act (ABA) have been completely updated and revised. The ADA Accessibility Guidelines (ADAAG) cover the construction and alteration of facilities in the private sector (places of public accommodation and commercial facilities) and the public sector (state and local government facilities). The accessibility guidelines issued under the ABA primarily address facilities in the federal sector and others designed, built, altered, or leased with federal funds. The guidelines under both laws have been combined into one rule entitled Americans with Disabilities Act and Architectural Barriers Act Accessibility Guidelines that contains three parts: a scoping document for ADA facilities, a scoping document for ABA facilities, and a common set of technical criteria that the scoping sections will reference. As a result, the requirements for both ADA and ABA facilities will be made more consistent. The updated guidelines were published as a final rule in the Federal Register in July of 2004. On March 23rd the Access Board added supplementary information on its Americans with Disabilities Act (ADA) and the Architectural Barriers Act (ABA). This information, which does not affect the substance of the guidelines, provides information on the adoption of enforceable standards based on these guidelines under the ADA and ABA.
Revision of Accessibility Standards
The federal agencies that are responsible for setting the standards to enforce the ADA and ABA are revising their standards so that they are consistent with the updated guidelines. For the ADA, the responsible agencies are the U.S. Department of Justice and Department of Transportation. The responsible agencies for the ABA are the U.S. Postal Service, Housing and Urban Development, General Services Administration, and Department of Defense. Until an agency revises its standards, the current standards will remain in effect. For more information, contact the U.S. Access Board.
Building Information Modeling
A Building Information Model (BIM) is a digital representation of physical and functional characteristics of a facility. As such, it serves as a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life cycle from inception onward. BIM has the potential to truly integrate accessibility into a project.
Wheeled Anthropometry
Anthropometry is the study of the dimensions and abilities of the human body. The IDEA Center in Buffalo started a major long range program to establish a database on the anthropometry of wheeled mobility in 1999. This program was initiated as part of the Rehabilitation Engineering Research Center on Universal Design at Buffalo. The U.S. Access Board also began supporting the effort in 2001.
Relevant Codes and Standards
- ADAAG 104 "Reference Standards" section
- ANSI A117.1 Accessible and Usable Buildings and Facilities
- ASME A17.1 Safety Code for Elevators and Escalators
- ASME A18.1 Safety Standard for Platform Lifts and Stairway Chairlifts
- International Code Council (ICC)—ICC is the secretariat for the ICC/ANSI A117.1 Accessible and Usable Buildings and Facilities, International Building Code, International Existing Building Code, International Residential Code
- ICC Code Requirements for Housing Accessibility (CRHA)—Provides an opportunity for safe harbor in compliance with accessibility requirements in the federal Fair Housing Act
- National Fire Protection Association (NFPA)—NFPA 72 National Fire Alarm Code, NFPA 5000 Building Construction and Safety Code, NFPA 101 Life Safety Code
- Uniform Federal Accessibility Standards (UFAS)
Major Resources
WBDG
Historic Preservation–Comply with Accessibility Requirements
Federal Mandates, Legislation, etc.
- Americans with Disabilities Act (ADA)
- Americans with Disabilities Act Accessibility Guidelines (ADAAG)
- Architectural Barriers Act (ABA)
- Fair Housing Accessibility Guidelines
- Help America Vote Act
- Rehabilitation Act
Organizations
Federal Agencies
- Department of Housing and Urban Development (HUD) Office of Fair Housing and Equal Opportunity (FHEO)—HUD enforces the Fair Housing Act and has issued guidelines under this law (the Fair Housing Accessibility Guidelines) which cover multi-family housing. Information is also available on how to file a complaint with HUD under the Fair Housing Act. HUD's website also addresses access under Section 504 of the Rehabilitation Act.
- Department of Justice (DOJ)—DOJ offers technical assistance on the ADA Standards for Accessible Design and other ADA provisions applying to public accommodations and commercial facilities, including businesses, nonprofit service agencies, and state and local government programs and services; also provides information on how to file ADA complaints. Many of its technical assistance letters are available online.
- ADA Information Line for documents, questions, and referrals:
(800) 514-0301 (voice)
(800) 514-0383 (TTY)
- ADA Information Line for documents, questions, and referrals:
- Department of Veterans Affairs (VA)—Accessibility Program
- General Services Administration (GSA)—National Accessibility Program
- U.S. Access Board
- U.S. Air Force—Air Force Center of Expertise for Accessibility
- U.S. Army—TI 800-01 Design Criteria, Chapter 7, Provision for Individuals with Physical Disabilities, Section 4, 20 July 1998.
- U.S. Navy—NAVFAC PDPS 94-01, Barrier Free Design Accessibility Requirements, 26 May 1994 (Revised 1 June 1997).
- U.S. Park Service
- U.S. Department of Transportation
- U.S. Postal Service
