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Lookup NU author(s): Dr Andrew Metcalfe
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The relationship between various measures of traffic speed, under free flow conditions, and accident rate is investigated for two groups of sites, one in the Tyne and Wear county of the UK and the other in Bahrain. The effect of speed limits on traffic speed is estimated for both groups of sites. In Bahrain, there is statistically significant evidence of an association between mean speed and accident rate. In Tyne and Wear the statistical evidence is weaker, and points to a stronger relationship between accidents and the variability of traffic speeds. In both areas, there is an apparent decrease in accident rate if the percentage of heavy vehicles increases, with the speed distribution held constant. In both areas the effect of speed limits is to reduce the mean speed of traffic by at least one quarter. Higher speeds are associated with longer trips. (C) 1998 Elsevier Science Ltd. All rights reserved.
Author(s): Aljanahi AAM, Rhodes AH, Metcalfe AV
Publication type: Article
Publication status: Published
Journal: Accident Analysis and Prevention
Year: 1999
Volume: 31
Issue: 1-2
Pages: 161-168
Print publication date: 01/01/1999
ISSN (print): 0001-4575
ISSN (electronic): 1879-2057
Publisher: Elsevier Science Ltd
URL: http://dx.doi.org/10.1016/S0001-4575(98)00058-X
DOI: 10.1016/S0001-4575(98)00058-X
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