How far must a horn be heard from a vehicle?

A motor vehicle's horn must be audible from a distance of 200 feet to ensure it effectively serves its purpose of alerting other road users to the presence of the vehicle. This distance is designed to enhance safety by guaranteeing that pedestrians, cyclists, and other drivers can hear the horn and respond appropriately to potential hazards. The requirement emphasizes the importance of vehicle safety features, like the horn, in preventing accidents and promoting safe driving practices. Adequate audibility at this distance contributes significantly to overall public safety on the roads.