Horizontal curves are an essential part of the rural highway system, yet they experience a disproportionate percentage of the state’s crashes, particularly run-off-road and wet-weather crashes. It is desirable to implement safety countermeasures to reduce these crashes, but the presence of large numbers of curves on the system makes it essential to weigh the cost-effectiveness of proposed countermeasures. Pavement-based countermeasures such as high-friction surface treatments have the potential to reduce wet-weather crash frequency by improving skid resistance. These treatments represent an intermediate-cost option because they are more expensive than installing signs and markings but less expensive than roadway realignment and straightening. To identify the best locations to install pavement treatments, it is necessary to weigh considerations of treatment cost, crash frequency, and exposure to wet-weather conditions.


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    Title :

    Developing Pavement Safety-Based Guidelines for Improving Horizontal Curve Safety, Project Summary


    Contributors:
    M. P. Pratt (author) / S. R. Geedipally (author) / B. Wilson (author) / S. Das (author) / M. Brewer (author) / D. Lord (author)

    Publication date :

    2018


    Size :

    2 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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