International Symbol of Accessibility

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The International Symbol of Access (ISA), also known as the (International) Wheelchair Symbol, consists of a blue square overlaid in white with a stylized image of a person using a wheelchair. It is maintained as an international standard, ISO 7001, and a copyrighted image of the International Commission on Technology and Accessibility (ICTA), a committee of Rehabilitation International. It was designed by Susanne Koefoed in 1968.

The symbol is often seen where access has been improved, particularly for wheelchair users, but also for others. Frequently, the symbol denotes the removal of environmental barriers, such as steps, to help also older people, parents with baby carriages, and travelers. Universal design aims to obviate the need for such symbols by creating products and facilities that are accessible to nearly all users from the start. The wheelchair symbol is "International" and therefore not accompanied by Braille in any particular language.

Specific uses of the ISA include:

Marking a parking space reserved for vehicles used by the disabled
Marking a vehicle used by a disabled person, often for permission to use a space
Marking a washroom with facilities designed for wheelchair users
Indicating a button to activate an automatic door
Indicating an accessible transit station or vehicle
Indicating a transit route that uses accessible vehicles