26 miles south of Chicago, there is triangle of three railroads, each of which cross other two, forming three railroad crossings approximately one-half mile apart; triangle layout included three old mechanical interlockings; controls of two were consolidated, third was replaced by automatic plant.


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    Title :

    Interlockings modernized at three railroad crossings


    Additional title:

    Ry Signaling Communications


    Published in:

    Publication date :

    1952


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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