Description of twin tube vehicular tunnel which is one of main features of Pittsburgh's new Penn-Lincoln Parkway; structure made up of two similar tubes, each providing for two 12-ft traffic lanes; ventilation; tunnel cross section; drainage; pavement; lighting; control center for tunnel operations.


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    Title :

    Squirrel hill tunnel


    Additional title:

    Traffic Eng


    Contributors:

    Published in:

    Publication date :

    1944


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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