September 2017 Vol. 25, No. 3

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Thinking of building a multilane roundabout?

The LRRB funded two studies to understand and address violations at multilane roundabouts. Roundabouts can reduce injury crashes, but failure to yield and improper lane-use violations can be overrepresented, leading to a higher number of property damage crashes. A four-page brochure summarizes findings from the two studies plus highlights of local agency experience. The downloadable brochure, illustrated with photographs and diagrams, provides suggested design modifications and notes a continuing need to educate drivers. Following is a sample from the brochure.

multilane roundabout

Photo: LRRB