Transportation-related activities represent approximately 20% of gross national product of United States; urban sprawl characterizing recent development of our cities has resulted largely from development of highly efficient highway transportation system; rail systems have been developed to high degree and, recently, new attention has been directed to this mode; air transport has evolved from struggling fledgling to major industry; nonetheless, highway, rail, and air transportation are all facing difficult problems; some of major areas of activity relating to each of these modes are reviewed.


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    Title :

    Status of transportation


    Additional title:

    IEEE -- Proc


    Contributors:

    Conference:

    1968


    Published in:

    Publication date :

    1968


    Size :

    11 pages


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


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