Horns, Bells & Whistles

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Motorized rail vehicles have powerful horns or whistles, making them audible at long distances. They are used as a form of communication, for example to warn about nearing level crossings, or to signal departure. As horns and whistles are very loud, unnecessary usage is prohibited.

Some motorized rail vehicles make themselves audible using bells when running at low speeds through populated areas, namely in rural areas, yards and passenger stations.

Horns, bells and whistles are commonly powered by air pressure.

See also: Electricity, Breakers, Compressor