Track Indicators
 

Track Indicators. A device frequently employing miniature semaphore arms or graphic symbols that indicates whether or not a train is approaching the location of that indicator. Indicators, which are found on only a few U.S. railways, and in Australia, are primarily for the benefit of train crews working on the track or maintaining switches for divergent lines. They are also known as switch indicators, track car indicators, block indicators, train approach indicators, train occupy indicators or motor car indicators.

Admin добавил 09.02.2012 в 16:00
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