DOT Press Conference September 2011
PASS Coalition

Pedestrians for Accessible and Safe Streets

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Images Tell Stories

Detectable warning surface


This is an image of a detectable warning surface, also known as a DWS, at a wheelchair ramp. The DWS alerts blind and low-vision travelers that they are at a curb. This image shows a DWS that is broken. Poor maintenance of DWS’s can cause tripping hazards for all pedestrians.

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