Automatic block signals installed between Detroit and Pontiac; color-light signals speed up train movements safely on busy section of suburban zone.


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    Title :

    Grand trunk western installs automatic signals on 22 miles of double track


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1932


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English