accessiblelow-floorwheelchair accessiblelow floorwheelchair-accessiblehandicapped accessibledisabled accesshandicapped-accessibleEasy Accessaccess
Accessibility in the sense considered here refers to the design of products, devices, services, or environments so as to be usable by people with disabilities.wikipedia
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Universal design

universal accessbarrier-freebarrier free
Accessibility is strongly related to universal design which is the process of creating products that are usable by people with the widest possible range of abilities, operating within the widest possible range of situations.
Universal design is the design of buildings, products or environments to make them accessible to all people, regardless of age, disability or other factors.

Disability rights movement

disability rightsAmerican Disability rights movementdisability right
The disability rights movement advocates equal access to social, political, and economic life which includes not only physical access but access to the same tools, services, organizations and facilities for which everyone pays (e.g., museums ).
It is made up of organizations of disability activists around the world working together with similar goals and demands, such as: accessibility and safety in architecture, transportation, and the physical environment; equal opportunities in independent living, employment equity, education, and housing; and freedom from discrimination, abuse, neglect, and from other rights violations.

Americans with Disabilities Act of 1990

Americans with Disabilities ActADAADA-accessible
In addition, unlike the Civil Rights Act, the ADA also requires covered employers to provide reasonable accommodations to employees with disabilities, and imposes accessibility requirements on public accommodations.

United States Access Board

Architectural and Transportation Barriers Compliance BoardAccess BoardU.S. Access Board
The United States Access Board (also known as the Architectural and Transportation Barriers Compliance Board) is an independent agency of the United States government devoted to accessibility for people with disabilities.

Convention on the Rights of Persons with Disabilities

CRPDUN Convention on the Rights of Persons with DisabilitiesUNCRPD
Article 9 of the United Nations Convention on the Rights of Persons with Disabilities commits signatories to provide for full accessibility in their countries.
Rights specific to this convention include the rights to accessibility including the information technology, the rights to live independently and be included in the community (Article 19), to personal mobility (article 20), habilitation and rehabilitation (Article 26), and to participation in political and public life, and cultural life, recreation and sport (Articles 29 and 30).


user-friendlyease of useuser friendly
Accessibility is not to be confused with usability, which is the extent to which a product (such as a device, service, or environment) can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.
The term user friendly is often used as a synonym for usable, though it may also refer to accessibility.

Accessibility for Ontarians with Disabilities Act, 2005

Ontarians with Disabilities ActAccessibility for Ontarians with Disabilities Act2005 Accessibility for Ontarians with Disabilities Act
In Ontario, Canada, the Ontarians with Disabilities Act of 2001 is meant to "improve the identification, removal and prevention of barriers faced by persons with disabilities ..."
Its purpose is to improve accessibility standards for Ontarians with physical and mental disabilities to all public establishments by 2025.


Accessibility in the sense considered here refers to the design of products, devices, services, or environments so as to be usable by people with disabilities.
Due to this work, physical barriers to access were identified.

Low-floor bus

low-floorLow floorLow entry
This is referred to as a kneeling bus.
A low-floor bus is a bus or trolleybus that has no steps between the ground and the floor of the bus at one or more entrances, and low floor for part or all of the passenger cabin.


Furthermore, a Visitability movement begun by grass roots disability advocates in the 1980s focuses specifically on changing construction practices in new housing.
Visitability stresses specific accessibility features from a social reform perspective, and counters social isolation.


Low-floor vehicles have been developed for buses, trolleybuses and trams.
An articulated tram may be low-floor variety or high (regular) floor variety.

Assistive technology

assistive technologiesassistive deviceadaptive technology
The concept of accessible design and practice of accessible development ensures both "direct access" (i.e. unassisted) and "indirect access" meaning compatibility with a person's assistive technology (for example, computer screen readers).


wheelchairswheel chairwheelchair access
The construction of low floor trams and buses is increasingly required by law, whereas the use of inaccessible features such as paternosters in public buildings without any alternative methods of wheelchair access is increasingly deprecated.

National Public Toilet Map

Australia's government has supported the creation of the National Public Toilet Map, to enable users to locate public toilet facilities throughout the country.
The digital map also provides information on accessibility (access for disabled people) and opening hours for most of the toilets identified.

Rapid transit

At rapid transit systems, vehicles generally have floors in the same height as the platforms but the stations are often underground or elevated, so accessibility there isn't a question of providing low-floor vehicles, but providing a step-free access from street level to the platforms (generally by elevators, which are somewhat restricted to disabled passengers only, so that the step-free access isn't obstructed by healthy people taking advantage).
If the station complies with accessibility standards, it allows both disabled people and those with wheeled baggage easy access to the trains, though if the track is curved there can be a gap between the train and platform.

Computer accessibility

accessibilityaccessibleAccessible computing
In human–computer interaction, computer accessibility (also known as accessible computing) refers to the accessibility of a computer system to all people, regardless of disability type or severity of impairment.


modern conveniencesconvenientmodern convenience
Convenient procedures, products and services are those intended to increase ease in accessibility, save resources (such as time, effort and energy) and decrease frustration.

Web Accessibility Initiative

WAIATAGAuthoring Tool Accessibility Guidelines
The first and most well known is The Web Accessibility Initiative (WAI), which is part of the World Wide Web Consortium (W3C).
Since people with disabilities often require non-standard devices and browsers, making websites more accessible also benefits a wide range of user agents and devices, including mobile devices, which have limited resources.


trolley bustrolleybusestrolley buses
Low-floor vehicles have been developed for buses, trolleybuses and trams.
A significant change to trolleybus designs starting in the early 1990s was the introduction of low-floor models, which began only a few years after the first such models were introduced for motorbuses.

Game accessibility

games accessible to gamers with disabilities
Within the field of human–computer interaction, game accessibility refers to the accessibility of video games.

Accessible toilet

accessible toiletsAccessibility of toiletsaccessible
Some countries have requirements concerning the accessibility of public toilets.

Design for All (in ICT)

design for all
Traditionally, accessibility problems have been solved with adaptations and the use of assistive technology products has been a technical approach to obtain adaptations.

Accessible tourism

accessibletourisme et handicap
Issues such as accessibility, design for all and universal design are featured in the international symposia of bodies such as the European Commission.

Walter Harris Callow

Walter Callow Wheelchair Bus established
Walter Harris Callow (1896–1958) was a Canadian veteran who invented the accessibility bus for veterans returning from WW2 and others in wheelchairs (1947).