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THE ACCIDENT HAZARD INDEX: A METHOD OF EVALUATING AND RATING HIGHWAY SAFETY PERFORMANCE

This study developed an Accident Hazard Index (AHI) for use by traffic engineers for an overall look at the highway safety problem within a state and to identify those counties with serious problems. In addition, a Computer Aided Safety Oriented Program (CASOP) was developed in order to facilitate the computation of the AHI values. The average number of fatal and injury accidents over a three-year period was used as the parameter to construct the AHI. Population, number of registered vehicles, and mileage of paved highways were selected as the normalizing factors in the construction of the AHI values. Based on these data, an AHI was constructed for the 46 counties in the State of South Carolina. In order to verify the accuracy of the AHI, per capita accident cost was used as a basis for comparison. For the state of South Carolina, a correlation coefficient of 0.667 was obtained between the AHI and per capita accident costs. This correlation coefficient indicated that the concept of using an AHI to measure the relative performance of highway safety is valid. As a result of this study, it was concluded that the AHI can be used for measuring the relative highway safety of various counties within a state in an effort to find counties with serious accident problems so that proper countermeasures might be developed.

  • Corporate Authors:

    Clemson University

    College of Engineering
    Clemson, SC  United States  29631
  • Publication Date: 0

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 28 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00370623
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 31 1983 12:00AM