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How to drive a roundabout

In 2001, Chattanooga Traffic Engineering introduced to Chattanooga residents a new concept in intersection traffic control with the building of a roundabout at the intersection of Westside Drive at 29th Street on the west end of Bachman Tunnel on the side of Missionary Ridge. The modern roundabout design is a relatively new design concept in the U.S., with the first modern roundabout being built in 1990 in Nevada. Since then many other states have adopted this design strategy.

To learn more about roundabouts and how they work, please click on the following images:


     How to drive a roundabout (pdf)


     Features of a roundabout (pdf)

                                                   Why roundabouts are safer (pdf)

 These documents are from Overland Park, Kansas


The intersection of Highway 153 access ramps, Lake Resort, and Access Road has been redesigned and is Chattanooga's first two lane roundabout. The following files will help you familiarise yourself with how to navigate this intersection.

Access Road Roundabout lane use
Lake Resort Roundabout lane use


Roundabouts in Chattanooga as of July 2019: (Click Here to view in a Google Map)
1. Westside Drive/US 41 at 29th Street (Bachman Tunnel)
2. Elder Mountain Road at O'Grady Drive
3. Mountain Creek Road at the W Road
4. Morris Lane at Homecoming Drive
5. Premier Drive at Pointe Centre Drive
6. Lake Resort Drive at Highway 153 NB ramps
7. Access Road at Highway 153 SB ramps
8. Igou Gap Road at Clearview Drive
9. Igou Gap Road at Gray Road
10. Gunbarrel Road at Standifer Gap Road
11. Northpoint Boulevard at Future Shopping Center Entrance
12. Volkswagen Drive at Hamilton County Park/VW Supplier Park
13. Volkswagen Drive at TDOT/Volkswagen Plant Entrance
14. Volkswagen Drive at Discovery Drive
15. Shallowford Road at Jenkins Road
16. Jersey Pike at Oakwood Drive
17. 4th Avenue at 37th Street (mini-roundabout, TDOT safety project)
18. River Gorge Drive at Waterthrush Lane/Wildrose Lane
19. Jenkins Road at Goodwin Road/Batters Place
20. Goodwin Road at East Brainerd Elementary D/W
21. Igou Gap Road at Jenkins Road
22. Mountain Creek Rd at N Runyan Dr.

Development Resource Center
1250 Market Street, Suite 3030 (map)
Chattanooga, TN 37402
Office Hours: 8 am to 4:30 pm
Phone: (423) 643-5950

Request new or report problems with existing traffic control devices by calling 311, (423) 643-6311, or by visiting

Photo by Phillip Stevens and Matt Lea