Track Circuit

A track circuit is a simple electrical device used to detect the absence of a train on rail tracks, used to inform signallers and control relevant signals.

Read more about Track Circuit:  Principles and Operation, Transmission of Status, Siding Turnout, Track Circuit Clips, History

Famous quotes containing the words track and/or circuit:

    “To most men, experience is like the stern lights of a ship, which illumine only the track it has passed.”
    —Samuel Taylor Coleridge (1772–1834)

    “each new victim treads unfalteringly
    The never altered circuit of his fate,
    Bringing twelve peers as witness
    Both to his starry rise and starry fall.”
    —Robert Graves (1895–1985)