System using absolute permissive block control, installed by Chicago, Milwaukee, St. Paul and Pacific, on 14 mi of single track between Marquette, Iowa and Monoma; straight primary and a-c primary power supply used.


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    Title :

    New automatic block signaling on Milwaukee


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1940


    Size :

    4 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English