Effects of the intelligent road lighting on traffic flow and night-time pedestrian recognation on a rural road

Anna Schirokoff, Juha Luoma, Juuso Kummala, Pentti Hautala

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

    Abstract

    In January 1999 Fortum, IVO Transmission Engineering Ltd (IVO) launched a project aiming for an intelligent pilot road section, where road lighting and variable speed limits are controlled optimally. For the calibration of the controller, more information on the effects of luminance on traffic flow was needed. Hence, two studies presented in this paper were conducted. First, the effects of four illumination steps (469W, 257W, 172W, no lighting) on traffic flow were studied. The second study was designed to investigate the effects of three road lighting steps on recognition of pedestrians. The traffic flow analyses showed that the increased lighting power did not increased the mean speed, neither proportion of short headways on the test site. On the contrary, the luminance had significant effect on driving behaviour. The high luminance decreased the mean speed as well as proportion of short headways. The main results of the study 2 showed that lighting affects the recognition distances of night-time pedestrians. Each lighting step met a frequently mentioned criterion distance of 100 m. This distance should be required considering the normal night-time driving speeds on the roads. Conclusively, the studies gave new information on the relationship between illumination and driving behaviour for the development of the control model of the intelligent road lighting management system. However, there is place for further studies to cover more weather and road conditions.
    Original languageEnglish
    Title of host publicationITS: Transforming the Future
    Subtitle of host publicationProceedings of the 8th World Congress on Intelligent Transport Systems
    Publication statusPublished - 2001
    MoE publication typeNot Eligible
    Event8th World Congress on Intelligent Transport Systems - Sydney, Australia
    Duration: 30 Sep 20014 Oct 2001

    Conference

    Conference8th World Congress on Intelligent Transport Systems
    CountryAustralia
    CitySydney
    Period30/09/014/10/01

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  • Cite this

    Schirokoff, A., Luoma, J., Kummala, J., & Hautala, P. (2001). Effects of the intelligent road lighting on traffic flow and night-time pedestrian recognation on a rural road. In ITS: Transforming the Future: Proceedings of the 8th World Congress on Intelligent Transport Systems