In recent years, there has been a widespread diffusion of roundabout intersections in the Italian road network; their undoubted popularity is attributable not only to their proven performance in terms of safety but also to their guarantee of smooth traffic flow. However, safety-related requirements of geometric designs are occasionally placed in a subordinate position; therefore, the success achieved by some foreign experiences has not been reached in every area. A model of potential crash rates may indicate how to modify the geometry of intersections to ensure safety. With regard to this, an example model based on the conflict opportunity technique has been developed for estimating crash rates at rural roundabouts. The model appears to respond well to traffic conditions and the geometry of roundabouts. Development of the model and results are described and analyzed in this paper.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Model of Potential Crash Rates of Rural Roundabouts with Geometrical Features


    Contributors:


    Publication date :

    2014-07-07




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Model of Potential Crash Rates of Rural Roundabouts with Geometrical Features

    Pecchini, D. / Mauro, R. / Giuliani, F. | British Library Online Contents | 2014


    Crash Analysis of Roundabouts at High-Speed Rural Intersections

    Isebrands, Hillary | Transportation Research Record | 2009


    Crash Analysis of Roundabouts at High-Speed Rural Intersections

    Isebrands, Hillary | Online Contents | 2009


    Statistical Analysis and Development of Crash Prediction Model for Roundabouts on High-Speed Rural Roadways

    Isebrands, Hillary / Hallmark, Shauna | Transportation Research Record | 2012


    Externality of risk and crash severity at roundabouts

    Daniels, Stijn | Online Contents | 2010