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NEWS
New ISO Standard
February 21, 2008

Equipping pedestrian street crossings with acoustic and tactile signals to help disabled persons was a step forward. The problem is that they vary from one country to another. Now, a new International Organization for Standardization (ISO) standard provides the basis for harmonizing such signals on a worldwide basis.

The aim of ISO 23600:2007, Assistive products for persons with vision impairments and persons with vision and hearing impairments – Acoustic and tactile signals for pedestrian traffic lights is to ensure equivalent information worldwide at intersections equipped with pedestrian crossing signals.

Acoustic and tactile signals should be used in combination to provide information such as precise directional information and the geometry of the intersection. At an intersection that is not equipped with acoustic and tactile signals, persons with vision impairments are forced to use the sounds of vehicular traffic when possible in order to estimate the time to start crossing a street and to determine their direction of travel.

ISO 23600:2007, Assistive products for persons with vision impairments and persons with vision and hearing impairments – Acoustic and tactile signals for pedestrian traffic lights was prepared by ISO technical committee ISO/TC 173, Assistive products for persons with disability. It costs 56 Swiss francs (CHF) or 51.35 US dollars (USD) based on current exchange rates and is available from ISO national member institutes and from ISO Central Secretariat through the ISO Store.


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