Light Source Color and Lighting Level Related to Roadway Safety
This research presents an unbiased review of visibility, lamp color, lighting level, and associated factors in relation to roadway lighting practice and standards. The main aim of the work is in reference to high-speed roadways. It is anticipated, however, that the topic will be of significance in most roadway situations. The ranges of lighting levels found for a wide variety of roadway types are therefore addressed. Spectral distributions may be monochromatic, as in the case of low pressure sodium, or non-monochromatic, as with high pressure sodium and metal halide lamps. The issue of monochromatic vs. nonmonochromatic sources is of importance in relation to light pollution. However, the topic is much broader. The actual form of the distribution has been shown to have effects upon visibility, which may be related to accidents. The 3 sources are therefore addressed in this paper in relation to their complete spectral distributions, rather than limiting the comparisons to monochromatic vs. non-monochromatic effects. The subject may also have wider implications than just effects on the driver. Bicyclists and pedestrians may benefit as well from more favorable spectral distributions.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/20782681
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Authors:
- Lewin, Ian
- Box, Paul
- Stark, Richard
- Publication Date: 2006-3
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References;
- Pagination: pp 49-57
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Serial:
- Accident Reconstruction Journal
- Volume: 16
- Issue Number: 2
- Publisher: National Association of Professional Accident Reconstruction Specialists
- ISSN: 1057-8153
- Serial URL: https://www.napars.org/
Subject/Index Terms
- TRT Terms: Color; Crash causes; Cyclists; Highway safety; Lamps; Lighting systems; Night visibility; Pedestrian safety; Spectrum analysis; Street lighting
- Subject Areas: Highways; Pedestrians and Bicyclists; Safety and Human Factors; I82: Accidents and Transport Infrastructure; I83: Accidents and the Human Factor;
Filing Info
- Accession Number: 01033264
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Sep 29 2006 10:35AM