Automatic block and centralized traffic control on main lines; power switches, car retarders, communication equipment and flood lights in yards, keep cars on move.


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    Title :

    Modern signals speed shippers' freight


    Additional title:

    Ry Age


    Published in:

    Railway Age ; 110 , n 21


    Publication date :

    1941


    Size :

    4 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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