Title: ACCIDENT MIGRATION ASSOCIATED WITH LANE-ADDITION PROJECTS ON URBAN FREEWAYS
Abstract: Case-studies were undertaken to assess the safety effects of restriping and reconstruction projects that have added a nonstandard mixed-flow lane to a freeway in Los Angles or Orange County by elimination of an interior shoulder. The most pronounced safety effect of the introduction of the additional lanes studied was the shift or migration of accidents from one location (postmile range) to another. Congestion relief in the range of the added lanes (with the exception of the downstream end of the lanes) and in an area upstream of the lanes led to a reduction in accident rates in those areas. Whether or not there was a significant net decrease in accident rates over the entire area of the added lane and its influence areas depended upon the individual circumstances of each of the case-studies.
Publication Year: 1988
Publication Date: 1988-12-01
Language: en
Type: article
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Cited By Count: 7
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