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Glossary
 
Tactile map

Description
One manufacturer's pushbutton-integrated signal can incorporate a raised schematic map showing what will be encountered as the pedestrian negotiates the crosswalk controlled by that pushbutton.

Additional information
Map information includes:
  • Number of lanes to be crossed;
  • Whether these are vehicular or bicycle lanes or trolley tracks;
  • Which direction traffic will be coming from in each lane; and
  • Whether there is a median.

This map is made up of changeable 'slugs' inserted in the side of the pushbutton housing. It must be set up for each crosswalk of the intersection. The map information shows just the crosswalk controlled by that signal, not the entire intersection.

Symbols used are not standardized in the US, but one manufacturer has developed a standard set that is used in other countries.

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How used
  • Pedestrians unfamiliar with the intersection or crossing hear the locator tone and locate the pushbutton and map.
  • Standing facing the crossing, they 'read' the map and learn how wide the street is, and what they will encounter in the crosswalk, before they begin to cross.
  • They can also learn whether the pedestrian signal controlled by that pushbutton provides a crossing time for the entire crossing or just to a median or island. If the signal is just for a portion of the street, the map indication will end on a 'median' graphic, indicating that there is another crossing, either controlled or uncontrolled.
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References
Draft Public Rights-of-Way Accessibility Guidelines state that 'where provided, graphic indication of the crosswalk shall be tactile'. Also requires that the figures contrast with the background.

PROWAAC X02.5.1.4D recommends map indications that are similar to the Swedish symbols.

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Prisma

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