The volume presents detailed procedures for an annual, national survey of driving exposure, based on mailed questionnaires to a random sample of licensed drivers in the 50 states and District of Columbia. The total sample size is 28,000 and subsamples in each state are proportional to the number of licensed drivers. Each questionnaire requires information on driver age and sex, plus a one-day trip record indicating vehicle type, model year, road type, day or night, and trip mileage. Each trip is subsequently classified in one of 26 unique driver-vehicle-road-environment combinations. The sample size assures a minimum significant difference of approximately 30-40 percent between mileage estimates of any two classes. (Author)


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    Titel :

    Acquisition of Information on Exposure and on Non-Fatal Crashes. Volume III-Procedures for an Exposure Survey


    Beteiligte:
    P. S. Carroll (Autor:in) / T. L. McDole (Autor:in) / W. L. Carlson (Autor:in) / P. S. Samarco (Autor:in)

    Erscheinungsdatum :

    1971


    Format / Umfang :

    68 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch







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