This document presents the transportation research on the traffic control devices, the visibility, and the highway-rail grade crossings.


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    Title :

    Traffic Control Devices, Visibility, and Highway-Rail Grade Crossings 2009, TRBs Transportation Research Record: Journal of the Transportation Research Board, No. 2122


    Publication date :

    2009


    Size :

    94 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English