META-ANALYSIS OF EVALUATIONS OF PUBLIC LIGHTING AS ACCIDENT COUNTERMEASURE
A meta-analysis of 37 studies evaluating the safety effects of public lighting is reported. The 37 studies contain a total of 142 results. The studies included were reported from 1948 to 1989 in 11 different countries. The presence of publication bias was tested by the funnel graph method. It was concluded that there is no evidence of publication bias and that it makes sense to estimate a weighted mean safety effect of public lighting on the basis of the 142 individual results. This is done by the log-odds method of meta-analysis. The validity of the combined results was tested against a number of rival hypotheses. It was concluded that the results are unlikely to have been caused by regression-to-the-mean and secular accident trends. The results were robust with respect to research design, decade of study, country of study, and type of traffic environment studied. The safety effects of public lighting were, however, sensitive to accident severity and type of accident. It was concluded that the best current estimates of the safety effects of public lighting are, in rounded values, a 65% reduction in nighttime fatal accidents, a 30% reduction in nighttime injury accidents, and a 15% reduction in nighttime property-damage-only accidents.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1485, Human Performance and Safety in Highway, Traffic, and ITS Systems. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Elvik, Rune
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 112-123
- Monograph Title: Human performance and safety in highway, traffic, and ITS systems
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Serial:
- Transportation Research Record
- Issue Number: 1485
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Crash severity; Crash types; Fatalities; Injuries; Loss and damage; Measures of effectiveness; Meta-analysis; Night; Property; Safety; Street lighting; Traffic safety; Validity
- Uncontrolled Terms: Effectiveness; Property damage
- Subject Areas: Data and Information Technology; Design; Highways; Safety and Human Factors; I81: Accident Statistics; I85: Safety Devices used in Transport Infrastructure;
Filing Info
- Accession Number: 00713543
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: Nov 13 1995 12:00AM