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

Date and Location

Not currently scheduled.

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 layout, and identify an alternate outcome of a design modification. 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

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 Carissa Frandrup 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.