The volume, the first of a three-volume final report, describes the relationship between intersection geometry and traffic and the motor-vehicle accident rates for groups of intersections sharing common design features. The analysis was based on a relatively detailed on-scene inventory of the geometry, design features, and traffic counts of 558 intersections coupled with police reports of the 4372 accidents that occurred in those areas during the three-year study period. Forty-one accidents were investigated in-depth by a multidisciplinary team to determine causal factors and to evaluate the effects of federal safety standards on intersection accident incidence and severity. Six design features were found to be accident-related--sight-distance obstructions, street-name signs, left-turn storage lanes, raised-marker delineation, bus stops and routes, and multiphase signalization. Countermeasures based on the influence of these six factors are recommended.


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    Titel :

    Motor Vehicle Accidents in Relation to Geometric and Traffic Features of Highway Intersections. Volume I. Executive Summary


    Beteiligte:
    N. A. David (Autor:in) / J. R. Norman (Autor:in)

    Erscheinungsdatum :

    1975


    Format / Umfang :

    28 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch