CTDOT Press Releases
09/17/2023
It’s National Roundabouts Week! CTDOT Highlights Important Role Roundabouts Play in Improving Safety and Reducing Carbon Emissions
The Connecticut Department of Transportation (CTDOT) is celebrating National Roundabouts Week September 18-22, 2023, highlighting the critical role roundabouts play in improving safety and reducing carbon emissions.
According to national data, converting a signalized intersection to a roundabout results in a 78% reduction in severe crashes and a 48% reduction in overall crashes. Connecticut has seen even more positive results, as a study of five roundabouts found an 81% reduction in severe crashes and a 49% reduction in total crashes.
CTDOT has constructed 16 roundabouts in Connecticut and has 14 more planned for state roadways in the future. Click here for a list of active and upcoming CTDOT roundabout projects in the state.
“I’m a strong advocate of roundabouts because they are proven to improve safety for all roadway users and reduce vehicle emissions polluting our air,” said Connecticut Department of Transportation Deputy Commissioner Laoise King. “By converting intersections to roundabouts, motorist, bicyclist, and pedestrian safety is improved, and traffic congestion is reduced. We’ll continue building roundabouts where appropriate to ensure people reach their destination safely and efficiently every trip.”
A roundabout is a one-way, circular intersection where traffic flows counterclockwise. Unlike rotaries and traffic circles, roundabouts operate at lower speeds, making them safer and simpler. By eliminating left turns at intersections, roundabouts remove the potential for head-on or broadside crashes. By eliminating stop signs or signalized intersections, traffic can flow more freely, reducing congestion and carbon emissions. Modern roundabouts also improve safety for bicyclists and pedestrians, as crossing distances are typically shorter, traffic is moving slower and in only one direction.
The CTDOT Roundabout Committee comprises experienced engineers who assist with the planning, designing, and constructing of roundabouts around the state and serve as a resource for Connecticut towns and cities. The Committee reviews roundabout concepts, advises on good design practices, and can help answer questions regarding size, suitability, materials, pavement markings, and more.
For more information and resources on Connecticut roundabouts, visit ct.gov/dot.
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