Roundabout and Alternative Intersections
This Committee aims to provide resources on roundabouts and alternative intersections, such as research, guidance, and manuals at the state and national levels to promote networking among transportation professionals interested and/or involved in such alternatives to traditional intersections.
Meeting Minutes:
Call for Submissions – Roundabout of the Year Award
Submissions are now open for the 2026 Roundabout of the Year Award, recognizing outstanding projects that demonstrate excellence in design, safety, innovation, and community impact. Entries should include a brief project description (up to two pages) and visuals highlighting key features, challenges, and results. Projects will be evaluated on design quality, safety performance, multimodal accommodation, and overall presentation.
📄 Download Submittal Template 📘 Download Award Description
📅 Submission Deadline: 11/15/2026 📩 Submit Entries here
- GDOT Roundabout Web Page provides information about the benefits, design guidelines, and ongoing projects related to roundabouts in Georgia.
- GDOT Roundabout Analysis Tool: Latest version can be downloaded in GDOT's Manuals and Guides Webpage , under section Traffic Operations / Alternative Intersections (V5.0 as of Mar 2026).
- GDOT ICE Tool: Latest version can be downloaded in GDOT's Manuals and Guides Webpage , under section Traffic Operations / Intersection Control Evaluation (v2.23 as of Feb 2025)
- The GDOT Roundabout Design Guide presents the principles and methods of achieving practical design and optimal roundabout operations through performance-based design. This document is not intended to establish policy within the Georgia Department of Transportation, but to provide guidance in adhering to the policies of the Department (last accessed 3/20/2026).
- A training video based on this design is also available on YouTube:
- The 2023 NCHRP Research Report 1043: Guide for Roundabouts provides information and guidance on all aspects of roundabouts. The background and research information on developing this report is also available in NCHRP Web-Only Document 347 (last accessed 11/22/2023).
- NCHRP Report 672: Roundabouts: An Informational Guide – Second Edition This 2010 TRB report on planning, design, construction, maintenance, and operation of roundabouts remains useful in helping to explain the trade-offs associated with roundabouts. This report updates the FHWA’s " Roundabouts: An Informational Guide ", based on experience gained in the United States since that guide was published in 2000 (last accessed 1/11/2023).
- A compilation of Technical Materials and Research by FHWA (last accessed 1/11/2023).
- Modern Roundabouts: A Safer Choice (a video by FHWA)
- FHWA's Outreach Resources
- ITE Webinar on September 22, 2022: Roundabout Palooza – Roundabout Design and Education, and Alaska to Connecticut Roundabout Projects (login required, last accessed 11/22/2023)
- ITE Webinar on February 6, 2025: Experiences in the Use of Mini and Modular Roundabouts by Highway Agencies (login required, last accessed 2/7/2025)
- TRB Standing Committee on Roundabouts (AKL12) – a rich forum focusing on planning, design and safe operation of modern roundabouts.
- GDOT/Arcadis Roundabout Presentation at the GAITE 2024 Summer Seminar: Evolution of Multilane Roundabouts in Georgia - Adding Raised Lane Dividers to Improve Safety
- GDOT Statewide Roundabouts Map
- A map of roundabouts in Georgia! This is a work in progress and we would appreciate feedback to make this a more comprehensive map.
How Carmel, Indiana Became the "Roundabout Capital of the United States"
Jeremy Kashman, chief engineer and director of engineering for the City of Carmel, IN, USA, joins the ITE Talks Transportation podcast to talk about how his city became the "Roundabout Capital of the United States." With more than 140 existing roundabouts and more in the works, Kashman describes the process of installing these roundabouts and the benefits they provide, including decreased congestion, improved safety, and reduced emissions. Kashman also describes the public's reaction to the roundabouts, and provides insights for any jurisdictions considering installing the structures.
2024 ROUNDABOUT OF THE YEAR:
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Before Construction
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During Construction
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During Construction
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Open to Traffic
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Open to Traffic
Live Cameras of Roundabouts
Disclosure: Links to multimedia resources from other agencies are provided for informational purposes only.
- Meyers, CA (last accessed 1/11/23)
- Derry, NH (last accessed 1/11/23)
- Troy, OH (last accessed 1/11/23)
- Armdale, NS, Canada (last accessed 1/11/23)
- Holister, CA (last accessed 5/3/24)
- Reidsville, NC (last accessed 5/3/24)
- Clearwater, FL (last accessed 5/3/24)
- Sicamous, BC (last accessed 5/3/24)
relevant Engaging Contents
- A 107-foot truck and trailer test run through a dog-bone roundabout (video link, last accessed 12/2/24)
- Roller Derby Disco around a freshly constructed roundabout in Fishtown, PA (video link, last accessed 12/2/24)
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