Accessible Pedestrian Signals (APS) are devices used to allow visually impaired pedestrians to use the ‘walk’ and ‘don’t walk’ signals when they are attempting to cross at a signalized intersection. The APS provide walk sounds such as a ‘coo-coo’ to indicate that it is safe to cross in a north-south direction and a ‘three note melody’ to indicate that it is safe to cross east-west. This directional guidance information is especially important at skewed intersections and at wide multi-lane crossings.
In addition to all new and upgraded signal installations which are equipped with APS, a limited number of installations per year are based on resident requests and supporting infrastructure.
All Traffic Control Locations are available on Open Data. The presence of Accessible Pedestrian Signals is included as an attribute within this data.