New study shows roundabouts are reducing crashes and improving traffic flow in Minnesota

The study examined the safety performance of roundabouts by comparing the before- and after-construction crash rates, and overall roundabouts are performing well. The study shows that there has not yet been a multi-vehicle fatality on a roundabout in Minnesota. There was an 86% reduction in the fatal crash rate at intersections where roundabouts were installed, and an 83% reduction in the serious injury crash rate.