Color light absolute permissive block automatics on 83 mi of single track, centralized traffic control on 8-mi zone between two junctions and 2 mi of manually controlled signaling facilitate operation; track and signal diagram of centralized traffic control territory at Albert Lea, Minn, given.


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    Title :

    C.T.C. And automatic signals on rock island


    Additional title:

    Ry Signaling


    Contributors:

    Published in:

    Publication date :

    1939


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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