Mini-Roundabout FAQs

Summary:

Roundabouts have been effective at increasing safety and efficiency of vehicle traffic. Traditional roundabout design typically requires a larger “footprint” than a traditional four-way intersection. More local agencies are implementing “mini roundabouts,” a type of roundabout characterized by a small diameter and fully traversable islands (central island and splitter islands). The focus of this implementation project is an FAQ document that defines and educates local agencies on use of mini and compact roundabouts, provides selection criteria on when to use, and synthesizes and provides easy navigation to technical information.

Final Deliverables:

• Mini-Roundabout FAQs (Report #2024RIC03)

Related Materials:

• Guidelines for Implementing Mini-Roundabouts  (Blog Post)
• Implementing Mini-Roundabouts  (Video/Webinar)
• LRRB Gathers Lessons Learned on Mini-Roundabouts  (News/Publication Article)

Related Research:

Project Personnel:

Principal Investigator:  Michael Marti

Technical Liaison:  Jon Pratt

Project Coordinator:  Jackie Jiran

Panel Members: 
Andrew Plowman - WSB
Bradley Estochen - Ramsey County
Jamal Love - Project Management and Technical Support
Joe Gustafson - Washington County Public Works - Engineer
Joe Stadheim - City of New Ulm
Kenneth Hansen - District 3
Kenneth Johnson - Traffic Engineering
Kent Exner - Apex Engineering Group
Lia Siro - Transit and Active Transportation
Lon Aune - Marshall County Highway Dept
Mark Vizecky - State Aid for Local Transp
Mark Wagner - Traffic Engineering
Michael Flaagan - Pennington County
Mike Stifter - City of Hutchinson
Nicole Bitzan - SRF Consulting
Paul Sponholz - City of Cottage Grove
Ryan Halverson - City of Shakopee
Sam Budzyna - City of Rochester
Steven Bot - City of St. Michael
Tony Winiecki - Scott County Community Services - Traffic Division
Zach Heimer - SRF Consulting