Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Acoustic Vehicle Alerting System(also: AVAS, Minimum sound requirement, Pedestrian warning sound)
- A class of vehicle systems that emit artificial sound to alert pedestrians and other road users to the presence and movement of quiet vehicles — typically electric and hybrid vehicles at low speeds, where tire and aerodynamic noise are insufficient for detection. Regulatory…
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