New type of fence, developed by Pennsylvania, to warn trains of rock, ice or soil movements which might endanger train operation; fence is linked electrically with roadway signals to detect and warn of rock falls and earth slides. (see also Ry Signaling v 29 n 1 pt 1 Jan 1936 p 28-31)


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    Title :

    Taking danger out of slides


    Additional title:

    Ry Eng Maintenance


    Published in:

    Publication date :

    1936


    Size :

    5 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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