MDOT - Roundabouts

Michigan.gov Home	MDOT Home \| Site Map \| Contact MDOT \| FAQ \| State Web Sites


>	MI Drive

>	Bicycling

>	Ridesharing

>	Safety

>	Alternatives to Driving

>	Courtesy Patrol

>	ITS Traffic Centers

Printer Friendly Text Only Version

Text Version

Share this link:

About Roundabouts

What is a Roundabout?

Image of Typical Roundabout A roundabout is a type of circular intersection that has been used in Europe for several decades. In recent years, MDOT has constructed several roundabouts and more are on the way. States that have constructed roundabouts have documented measurable decreases in delay and congestion.

View List of Completed and Planned Roundabouts
New Roundabout at 26 Mile Road over M-53

Benefits of Roundabouts
Modern roundabouts are superior to old-style traffic circles and to conventional intersections at many locations. They are designed to maximize traffic flow and safety in several ways:
- They keep traffic moving; this decreases emissions and improves fuel economy.
- They increase safety because there is no stopping in a roundabout and no left turns across opposing traffic lanes.
- They force vehicles to slow to a safe speed for the intersection.
- They can be landscaped to offer an attractive gateway into a city or other area.
The lane design and pavement markings in a roundabout guide drivers safely through the intersection.

How to Drive a Roundabout

• How to Drive a Roundabout
Roundabout Illustration Roundabouts are easy to navigate and safer than traditional intersections. Remember, traffic in the roundabout always moves counterclockwise.

- Choose your lane before entering.
- Yield to traffic already in the roundabout and to pedestrians in crosswalks.
- Use signs and pavement markings to help guide you.

View Flash Demo

More Roundabout Information

• Modern Roundabouts - New York Department of Transportation

• Roundabouts - A Safer Choice

• Roundabouts USA

• FHWA Safety Information