In 1924 Los Angeles built first tunnel for protection of school children; to date 46 tunnels have been built and are in constant use.


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    Title :

    Tunnels separate children from traffic


    Additional title:

    Nat. Safety News


    Contributors:

    Published in:

    Publication date :

    1930


    Size :

    2 pages


    Remarks:

    3 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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