What is the purpose of a traffic circle, and how do I get one installed on my street?
Seattle has well over 1,000 neighborhood traffic circles. They are effective at reducing accidents at intersections. They also reduce speeds at the intersection and multiple traffic circles can reduce speeds along the entire street corridor. We receive many requests for traffic circles, although there are funds to install only about 10-15 each year. Traffic circles are prioritized on how many accidents have occurred at the intersection, as well as on the measured speeds and traffic volumes. More information can be found in Neighborhood Traffic Operations.
