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Analyzing Roundabouts: Do Crashes Go Up or Down When Cars Go Round-and-Round?

Authors: Timothy Garceau*, Central Connecticut State University
Topics: Transportation Geography, Urban and Regional Planning, Urban Geography
Keywords: Transportation, Traffic Safety, Sustainability
Session Type: Poster
Day: 4/8/2020
Start / End Time: 3:20 PM / 4:35 PM
Room: Virtual Track 3
Presentation File: No File Uploaded


While roundabouts have been shown to provide safety benefits as compared with signalized intersections, they have faced public resistance and therefore been slow to diffuse across the country. One place where roundabouts have gained favor is Keene, New Hampshire which has five roundabouts in operation and another two planned. Building on previous research which identified air quality improvements as a result of Keeneā€™s roundabout conversions, this research will assess the impacts on the safety of users within the intersections. As the northeastern United States has begun transitioning to roundabouts for intersections the region, this research is particularly timely in contributing to the outreach, design and implementation of roundabout conversions.

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