A roundabout is a circular intersection where traffic flows around a center island. They can be used as an alternative for traffic signals and stop signs and have many benefits. According to the U.S. Department of Transportation:
- They reduce crashes with fatalities by 90 percent.
- They reduce crashes with injuries by 76 percent.
- They reduce crashes with pedestrians by 30–40 percent.
- They increase traffic capacity by 30–50 percent.
- They reduce pollution and fuel use.
- They save money installation and repair costs.
Navigating a roundabout
As a general rule, the flow of traffic in a roundabout is counter-clockwise. Enter the roundabout when there is a safe gap in traffic and yield to pedestrians in the crosswalk.
Once in the roundabout, don’t stop (except for crashes) and don’t pass other vehicles or bicyclists.
For more instructions on how to navigate a roundabout, see the 
How to Drive a Roundabout brochure from the Dakota County Transportation Department.