Audible Pedestrian Signals
An Accessible Pedestrian Signal (APS) is a device that communicates information about pedestrian timing at signalized intersections through the use of non-visual, audible tones. We are hoping to improve accessibility for all pedestrians, including those with visual impairments, by ultimately installing APS at all signalized intersections. As of July 2019, 604 signalized intersections are equipped with APS.
How they work
Pedestrians will hear one of four typical audible tones, depending on the signalized intersection.
- "Coo Coo" – heard when the "WALK light is on, typically for North-South pedestrian crossing directions
- "Chirp Chirp" – heard when the "WALK" light is on, typically for East-West pedestrian crossing directions
- "Tick Tick" - this the pushbutton locator tone that provides an audible sign that a pushbutton is required to request the "WALK" signal
- "Tock" - this is the confirmation that the pushbutton has been activated, and that a request for the "WALK" signal has been made
If an intersection does not have a pushbutton, audible signals will be automatically activated with the corresponding lighted pedestrian signals.
If you come across a signalized intersection where there is no APS installed, you cannot hear the audible tones, or the tones are too loud, please contact 311.