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Title: Crash Analysis of Roundabouts at High-Speed Rural Intersections
Accession Number: 01123255
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Federal, state, and local agencies have identified increased intersection safety as an achievable objective in their campaigns for safer highways. Roundabouts could reduce the number of fatal and severe crashes. Roundabouts have been successful in Europe and Australia in both urban and rural environments for decades. The documented safety benefits associated with roundabouts address numerous concerns surrounding injury crashes at intersections; however, applications of roundabouts on two-lane, high-speed (40+ mph) rural highways have not been explored to the extent that urban roundabouts have in the United States. This research conducted a safety analysis of 17 intersections on high-speed rural roadways in the United States that were converted to roundabouts. The findings show the average injury crash frequency was reduced by 84%, average injury crash rate was reduced by 89%, angle crashes were reduced by 86%, and fatal crashes were reduced by 100%.
Monograph Title: Traffic Safety: Roundabouts, Trucks, Older Drivers, and Traffic Law Enforcement 2009 Monograph Accession #: 01138536
Report/Paper Numbers: 09-1048
Language: English
Authors: Isebrands, Hillary NPagination: pp 1-7
Publication Date: 2009
ISBN: 9780309126120
Media Type: Print
Features: Figures
(4)
; Photos
(7)
; References
(19)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Design; Highways; Safety and Human Factors; I20: Design and Planning of Transport Infrastructure; I82: Accidents and Transport Infrastructure
Files: TRIS, TRB, ATRI
Created Date: Jan 30 2009 5:15PM
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