Audible Pedestrian Signal

A device attached to a pedestrian crossing traffic signal that conveys the WALK and DON'T WALK phases through non-visual cues — typically beeps, chirps, speech messages, or a vibrating tactile arrow indicating the direction of travel. APS support safe crossing for blind and low-vision pedestrians by replacing or augmenting visual walk signals, and are recognised by the US Access Board and similar bodies as a core piece of pedestrian right-of-way accessibility. Coverage remains uneven in most cities, making pre-travel awareness of which intersections have APS — information rarely present in mainstream maps — an important accessibility need.