Ninety-four traffic safety projects were analyzed to determine crash reduction factors and benefit/cost (B/C) ratios for seven different improvement categories. Confidence intervals for the various crash categories were also determined. New crash reduction factors and B/C ratios are recommended for five of the seven categories analyzed. Overall analysis showed that the projects had a mean crash reduction rate of 23 percent. Hazard Elimination Safety (HES) projects accounted for a 40 percent decrease in crashes. Transportation Safety Funds (TSF) projects showed a 21 percent decrease in crashes. In all cases, the 90 percent confidence interval (the interval at which we can be 90 percent confident that the true mean lies within) is positive.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Effectiveness of Roadway Safety Improvements


    Beteiligte:
    G. B. Thomas (Autor:in) / D. J. Smith (Autor:in)

    Erscheinungsdatum :

    2001


    Format / Umfang :

    54 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Highway Safety: Roadway Improvements, Accident Rates, and Bicycle Programs

    H. E. Strate / J. G. Pigman / K. R. Agent et al. | NTIS | 1981




    Measuring Roadway Safety

    Tarko, A.P. | British Library Conference Proceedings | 2005


    Roadway Worker Safety

    Riley, J. E. / American Railway Bridge and Building Association | British Library Conference Proceedings | 1997