What is a roundabout?
A roundabout is a type of circular intersection with yield control of entering traffic and appropriate roadway curvature to reduce vehicle speeds.
Modern roundabouts are different from rotaries and other traffic circles. For example, roundabouts are typically smaller than the large, high-speed rotaries still in use in some parts of the country. In addition, roundabouts are typically larger than neighborhood traffic circles used to calm traffic.
(Above: This is the nearly completed Ham Reid Roundabout in late July 2017.)
Compared to other types of intersections, roundabouts have demonstrated safety and other benefits.
Improvement in safety
More than 90 percent reduction in fatalities
76 percent reduction in injuries
35 percent reduction in all crashes
Slower speeds are generally safer for pedestrians.
They reduce congestion
Efficient during both peak hours and other times
Typically less delay.
Complement other common community values
Functional and aesthetically pleasing
Reduce pollution and fuel use
Fewer stops and hard accelerations, less time idling.
Tips for driving a roundabout:
• Slow down. Obey traffic signs.
• Yield to pedestrians and bicyclists.
• Yield to both lanes of traffic on your left already in the roundabout.
• Enter the roundabout when there is a safe gap in traffic.
• Keep your speed low within the roundabout and stay in your lane.
• As you approach your exit, turn on your right turn signal.
• Yield to pedestrians and bicyclists as you exit.
A flag-raising ceremony to commemorate the completion of the Ham Reid roundabout was held in February of 2018. Watch it here: