Glossary

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Accessible Pedestrian Signal(also: APS, Audible Pedestrian Signal, Talking Traffic Signal)

A traffic control device that communicates pedestrian signal information in non-visual formats, typically through audible tones, speech messages, or vibrating surfaces, enabling blind and visually impaired pedestrians to know when it is safe to cross a street and in which…

Crosswalk(also: Pedestrian Crossing, Zebra Crossing, Continental Crossing)

A marked area on a roadway designated for pedestrians to cross safely, typically indicated by painted lines or patterns on the pavement. Zebra crossings (called "continental crossings" in the US) feature bold parallel white stripes that are highly visible to drivers, while…

External Human-Machine Interface(also: eHMI, External HMI)

A class of interfaces on the exterior of a vehicle — typically an automated or autonomous vehicle — designed to communicate the vehicle's intent, awareness, or state to pedestrians, cyclists, and other road users who would otherwise rely on cues from a human driver (eye contact,…

Pedestrian Crossing(also: Crosswalk, Zebra crossing, Pedestrian crosswalk)

A designated location on a road where pedestrians have legal priority, guidance, or protection to cross, typically marked by paint (zebra or ladder stripes), signs, or signal-controlled infrastructure. Pedestrian crossings range from unmarked mid-block crossings through…

Pedestrian Safety(also: Walking safety, Vulnerable road user safety)

The field and practice of protecting people who walk — including those with disabilities, older adults, and children — from injury and death in road traffic environments. Pedestrian safety encompasses road design (crossings, curb ramps, accessible pedestrian signals, raised…

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