The highway design process in Florida has been governed by design standards and policies developed by the Florida Department of Transportation (FDOT). Most of these standards have been developed by highway designers based, at least partly, on engineering judgement. In many cases the effects of highway design features on safety have not been estimated. In an effort to reduce the high crash and fatility rates in Florida, the FDOT is considering improving its design standards. This report presents the results of analyses performed to estimate the effects of several geometric design elements on total, injury and fatal crash rates for various types of rural and urban highways at different traffic levels. This report further presents cost-effectiveness analyses of many highway design standards. The cost components considered include the costs of crashes, highway construction, user travel time and vehicle operation. Finally, the report summaries the effects of FDOT design policies and standards on safety based on the results of the review of literature, regression analyses and benefit-cost analyses discussed above. Recommendations that can be given regarding any changes to these design policies and standards are also presented.


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    Title :

    Relationship of Highway Design Standards to Accidents, Injuries and Fatalities


    Contributors:
    M. A. Hadi (author) / J. A. Wattleworth (author) / J. Aruldhas (author) / L. F. Chow (author) / C. T. Gan (author)

    Publication date :

    1995


    Size :

    222 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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