1 / 6

Success Story: Minnesota Roundabout in Scott County

Learn about the success of the roundabout at State Highway 13 and County Road 2 in Scott County, Minnesota in reducing crashes and improving intersection safety.

cdominguez
Download Presentation

Success Story: Minnesota Roundabout in Scott County

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Minnesota Roundabout A Scott County Success Story FHWA-SA-09-013

  2. The Challenge The intersection of StateHighway 13 and County Road 2 in Scott County, Minnesota, was the site of 2 fatal crashes and 50 injury crashes between June 2000 and June 2005. Minnesota Department of Transportation (Mn/DOT) tried several treatments, including larger stop signs, striping, and flashing lights, with little success. Mn/DOT sought to reduce the number and severity of crashes at this two-way stop-controlled intersection.

  3. Solution Single Lane Roundabout: 4 approach lanes 1 circulatory lane Central Island diameter of 110 feet Approach lane widths of 16 feet Departure lane widths of 14 feet 200-foot long median on County Road 2 300-foot long median on State Highway 13 25 feet wide splitter islands 10 feet wide truck apron Transverse rumble strips placed 20 feet center-to-center on apron

  4. Technical Data Location: County Road 2 and State Highway 13, Scott County, MN Speed Limits: Both County Road 2 and Highway 13 have a posted speed limit of 55 mph Average Daily Traffic (ADT): County Road 2 - 4,300 Highway 13 – 4,650 Construction Cost: $725,000 Construction Time: Constructed in 2005 and lasted for 3 months Implementation Issues: MnDOT experienced no implementation issues withthe roundabout

  5. Results Average Crash Reductions: 100% reduction in angle crashes per year 78.7% reduction in injury crashes per year 76.2% reduction in total crashes per year

  6. For More Information Visit FHWA’s intersection safety web site to download this and other case studies highlighting proven intersection safety treatments from across the country: http://safety.fhwa.dot.gov/intersection/ Or Contact: Anthony J. Winiecki, P.E., PTOE Scott County Public Works Department, Jordan, MN Phone: (952) 496-8346 E-mail: twiniecki@co.scott.mn.us Ed Rice Office of Safety (HSSD) Federal Highway Administration Phone: (202) 366-9064 E-mail: ed.rice@dot.gov

More Related