MnDOT Roundabout Design, Facility Design Guide, Section 6E Workshop

May 23–May 25, 2023
Day One: 9:00 a.m.–4:00 p.m. Central
Day Two: 8:00 a.m.–4:00 p.m. Central
Day Three: 8:00 a.m.–4:00 p.m. Central

1900 County Road I West
Shoreview, MN 55126
United States

About the Event

This three-day workshop is designed for engineers and designers from both agencies and consulting firms who deliver roundabout projects for MnDOT. The training will focus on Section 6E of the MnDOT Facility Design Guide. Its goal is to improve participants’ abilities to analyze roundabout capacity, develop a design that meets MnDOT standards and design practices, and produce a layout for staff approval. This workshop will include hands-on training using drafting exercises for simple, compact urban, mini, skewed, and 2+1 roundabouts.

At the training, participants will:

  • Use guidelines and design preferences from Section 6E of the MnDOT Facility Design Guide.
  • Describe circle sizing and placement.
  • List MnDOT Intersection Control Evaluation (ICE) documentation elements and discuss lane configuration and expandability.
  • Discuss computer software used for analysis and design.
  • Discuss roundabout design performance parameters.
  • Identify special roundabout considerations (oversized/overweight, ADA, longitudinal grades, maintenance, landscaping, signing, and high-speed approaches).
  • Use layout sketching techniques and outline variation in design and design checking.

The workshop curriculum features the following case examples:

  • Simple Roundabout: SP 2510-55 TH 58 in Goodhue
  • Compact Urban Roundabout: SP 6106-25 TH 29 in Glenwood
  • Mini Roundabout: SP 5916-117 TH59 in Pelican Rapids
  • Skewed Roundabout: SP 3609-48 TH 53 in International Falls/SP 1807-32 TH 210 in Crosby
  • 2+1 Roundabout: SP 1008-104 TH 41 in Chaska


If you are a MnDOT employee, please follow these instructions to register:

  1. Obtain supervisory approval for your training request and travel time.
  2. Use your Office/District Training Registration Process.
  3. When your training request is approved, you will receive an email enrollment confirmation.

All other participants should register online. The cost to attend is $800 per workshop, which includes learning materials and meals. Registration is limited to five individuals, so early registration is encouraged.

Who Should Attend

Highway design practitioners, planners, and project managers.

More Information

With questions about workshop content, contact Jamal Love with the MnDOT Geometrics Design Support Unit at For all other questions, contact Rachel Brodeur with the Center for Transportation Studies at or 612-625-5608.


This workshop is sponsored by the Minnesota Department of Transportation and hosted by the Center for Transportation Studies.