What is the distance requirement for a horn's audible sound?

The distance requirement for a horn's audible sound is 200 feet. This standard is established in traffic regulations to ensure that drivers can effectively communicate their presence and intentions to others on the road. A horn serves as a crucial safety device, allowing drivers to alert pedestrians and other vehicles, especially in situations where visibility may be compromised or where the potential for collision exists.

The specified distance of 200 feet ensures that the sound is loud enough to be heard by others without being excessive, striking a balance between safety and noise pollution. This requirement reflects the expectation that a vehicle's horn should be an effective tool for promoting safety and awareness on the road.