Highlights ► A procedure for sight distance calculation when highway design data are unavailable. ► Integration of sight distance calculation with other road safety analyses. ► Sight distance calculations could use the most recent and detailed data available.

    Abstract Analyzing the distance visible to a driver on the highway is important for traffic safety, especially in maneuvers such as emergency stops, when passing another vehicle or when vehicles cross at intersections. This analysis is necessary not only in the design phase of highways, but also when they are in service. For its use in this last phase, a procedure supported by a Geographic Information System (GIS) has been implemented that determines the highway distances visible to the driver. The use of a GIS allows the sight distance analysis to be integrated with other analyses related to traffic safety, such as crash and design consistency analyses. In this way, more complete analyses could be made and costs shared. Additionally, with the procedure proposed it is possible to use data regarding the trajectory of a vehicle obtained on a highway with a Global Positioning System (GPS) device. This application is very useful when highway design data are not available. The procedure developed and its application in a case study are presented in this article.


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    Titel :

    Sight distance analysis of highways using GIS tools


    Beteiligte:
    Castro, María (Autor:in) / Iglesias, Luis (Autor:in) / Sánchez, José A. (Autor:in) / Ambrosio, Luis (Autor:in)


    Erscheinungsdatum :

    2011-05-11


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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