Comparative merits of various types of grade crossing protection; "gates-not-working" and "watchman-not-on-duty" signs; barrier type of grade crossing protection, including automatic gates; lamps on manual and automatic crossing gates.


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    Title :

    Report of committee IX -- Highways


    Additional title:

    Am Ry Eng Assn -- Bul



    Publication date :

    1938


    Size :

    9 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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