Effects of weather-controlled variable speed limits on injury accidents

Pirkko Rämä, Anna Schirokoff

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific


    A study was conducted on the impacts of weather-controlled variable speed limit systems on injury accidents. The high quality systems which based the control on automatic classification of road condition situations and which used fibre optic or LED signs decreased the injury accident risk in winter by 13% and in summer by 2%. For the other group of systems with manual control and electromechanical signs the safety was reduced. The length of the follow up periods was up to 12 years. The results were not statistically significant.
    Original languageEnglish
    Title of host publicationMoving towards an integrated Europe: intelligent transport systems and services
    Subtitle of host publicationCongress and exhibition
    Number of pages6
    Publication statusPublished - 2004
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventITS in Europe - Budapest, Hungary
    Duration: 24 May 200426 May 2004


    ConferenceITS in Europe


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