Interim Planning Director Cole Runge from Brown County ( Green Bay Wisconsin) wrote a letter describing the use of Roundabouts near schools on Lineville Road, this was converted from original pdf to HTML.
The original document is located here, www.co.dakota.mn.us/Transportation/PlannedConstruction/CR30Braddock/Documents/DiffleyRoadLetterBrownCounty.pdf.
This is roundabout similar to what will be installed on Diffley.
This is the proposed plan for Diffley.