View source for 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.

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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.

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Horns, bells and whistles are commonly powered by air pressure.
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{{See also|Electricity|Breakers|Compressor}}
[[Category:Accessories|5]]