Railway Signalling Equipment Treadle Presentation

Railway Signalling Equipment Treadle Presentation What is Treadle ? A treadle is a mechanical or electrical device that detects that a train axle has passed a particular location. They are used where a track circuit requires re-inforcing with additional information about a train’s location, such as around an automatic level crossing, or in an annunciator circuit, that sounds a warning […]

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