Installation at De Graff, Ohio, where complete interlocking layout, including two crossovers and four passing-track switches with accompanying signals, is controlled remotely, by means of coded-line circuits, from CTC type of machine in tower 3.5 mi away; saves $6000 annually in operating expenses as compared with locally operated interlocking plant.


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    Title :

    Big four uses centralized control for remote interlocking


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1932


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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