Procedures used in making aerial photographic density studies are described and sample photographs and sample analytical results presented; new method of presenting freeway operations data and density contour map is described and use of map in determining origin, duration, and extent of congestion is discussed.


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    Title :

    Use of aerial photography in freeway traffic operations studies


    Additional title:

    Nat Research Council -- Highway Research Board -- Research Rec


    Contributors:


    Publication date :

    1963


    Size :

    11 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English