Results of studies made concerning relative effectiveness of following types of protection: warning signs, visible and audible signals, gates or barriers, and grade separations. Before 22nd Annual Safety Congress.


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    Title :

    Railway crossings need positive protection


    Additional title:

    Nat Safety News


    Contributors:

    Published in:

    Publication date :

    1933


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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