A modern roundabout is an unsignalized circular intersection used to maximize safety, minimize traffic delay, and provide aesthetic benefits.
Roundabouts are currently located within the City of Woodbury: a multi-lane roundabout at Radio Drive and Bailey Road, and a single-lane roundabout at Settlers Ridge Parkway and Lake Road in the Stonemill Farms development. In addition, five single-lane roundabouts located along Hargis Parkway and one on Pioneer Drive south of Bailey Road provide access to East Ridge High School.
City considering future roundabouts
Roundabouts are a form of traffic control the city is currently considering at new and reconstructed intersections. For intersections that require more capacity than can be provided at two-way stop or all-way stop intersections, a detailed study of each intersection will be performed to determine whether a traffic signal or roundabout is most appropriate. Roundabouts are generally most effective at intersections with the following characteristics:
- Location with high incidents of right angle or turning traffic crashes.
- Locations with complex geometry.
- Locations with frequent left-turn movements.
- Locations where traffic flows from opposing directions are fairly balanced.
- At isolated locations or outside a series of traffic signals that are spaced close together. (Placing a roundabout in the middle of a series of traffic signals would disrupt any coordinated timing that may exist.)