The objective of this study was to determine the change in crash history at intersections after installation of a traffic signal. Signals installed based on the warrants from an engineering study resulted in a decrease in angle collisions with an increase in the less severe rear end collisions. At intersections where signal warrants were not met, there was a smaller decrease in angle collisions and a larger increase in rear end collisions. The removal of unwarranted traffic signals did not result in a crash problem. The analysis shows that the warrants given in the MUTCD should be followed when determining the need for a traffic signal installation with the installation based on an engineering study.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Crash History After Installation of Traffic Signals (Warranted vs. Unwarranted)


    Contributors:
    K. R. Agent (author) / E. R. Green (author)

    Publication date :

    2008


    Size :

    26 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





    Crash Experience Warrant for Traffic Signals

    J. Bonneson / K. Laustsen / L. Rodegerdts et al. | NTIS | 2014


    Crash Experience Warrant for Traffic Signals

    H. McGee / S. Taori / B. Persaud | NTIS | 2003