Splitter islands at the approaches slow vehicles and allow pedestrians to cross one lane at a time. The roundabout needs to be constructed to accommodate the needs of pedestrians and bicyclists. Pedestrians may need to travel out of their way to cross the intersection, but generally have a shorter wait than with a signal and have only one direction of approaching traffic to watch for. Unfortunately, visually impaired people have difficulty crossing at roundabouts. This issue needs to be adequately addressed in the design of roundabouts.
Bicyclists usually suffer the most from roundabout design.
Marking bicycle lanes through the roundabout has not always been shown to be safer. This Fort Pierce, Florida roundabout was constructed to reduce speeding, improve safety, and enhance the aesthetics of the community . This guide is currently under review by practicioners and others in the field. Subsequently, the material provided on this page is subject to change in the future. Replaces a signalized intersection that is experiencing heavy traffic backup and congestion.