Centralized traffic control installed by Union Pacific between Cheyenne, Wyo, and Laramie on double track main line and newer single track low grade line, totaling 177 track mi; system includes track occupancy indicators, rock slide detectors, and electric switch heaters.


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    Title :

    CTC for both ways on each track


    Additional title:

    Ry Age


    Published in:

    Railway Age ; 139 , n 19


    Publication date :

    1955


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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