Photographic method for initiating closely coordinated aerial and ground camera system; aerial photographic reconnaissance, using Maurer 70-mm aerial camera mounted on helicopter, provides individual vehicle and overall stream-movement data, including vehicle speed, acceleration, following distance and trajectory of vehicle as it passes through study area; aerial-camera system fixes 70-mm camera in special vertical mount along with closed-circuit television camera on side of helicopter; TV system, which projects view identical to that of film camera to monitor on pilot's instrument panel, is used as viewfinder.


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    Title :

    Aerial photography aids freeway traffic studies


    Additional title:

    Better Roads


    Published in:

    Better Roads ; 38 , n 8


    Publication date :

    1968


    Size :

    5 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English