Position-light signals replace semaphores; automatic signals re-spaced for train speed of 70 mph; coded cab signaling system installed on wayside and in locomotives; 26 plants rebuilt.


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    Title :

    Signaling on Pennsylvania's electrified line


    Additional title:

    Ry Signaling


    Contributors:
    Oler, B.F. (author)

    Published in:

    Publication date :

    1933


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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