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Roundabout Links

National

• FHWA Roundabout Guide
• Insurance Institute for Highway Safety publication
  Status Report, May 13, 2000 (PDF, 395kb)
  Status Report, July 28, 2001 (PDF, 226kb)
  Crash Reductions Following Installation of Roundabouts in the United States, March 2000 (PDF, 582kb)
• PUBLIC ROADS (Autumn 1995) – ROUNDABOUTS

California

• Caltrans' Design Informational Bulletin 80
• Calabasas, California: This site provides driver, bicycle, and pedestrian education material modeled after the FHWA Roundabout Guide.

Colorado

• Aspen, Colorado

Florida

• Clearwater, Florida: This website is an announcement for a past case study discussion but provides good information about the project.

Kansas

• Hutchinson, Kansas
• Kansas State University: This website has a nice database of photos and video clips from roundabouts in the United States and France.

New York

• New York State Department of Transportation's roundabout home page
• Kingston, New York: Site is a double–lane roundabout constructed inside an old–style rotary. Photo of roundabout under construction. Also can do a search under “roundabout” to find interesting letters to the editor.

North Carolina

• Hillsborough Street, Raleigh, North Carolina: Project web site

Oregon

• Lane County, Oregon: Beltline/Delta Highway Interchange (click on item in left frame). Comparison of signalized versus roundabout ramp terminals. Includes simulation clips.
• Oregon Department of Transportation's roundabout web page
• Oregon State University student page
• City of Portland, Oregon

Utah

• Park City, Utah
• TrafficCalming.org

Vermont

• Vermont Agency of Transportation: "Bicycle and Pedestrian Plan" – Jump to table of contents, click on Chapter 3 and scroll down to 3.2.2 – Roundabouts.

Washington

• Washington State Department of Transportation

Other U.S. sites:

• Kittelson & Associates roundabout inventory database
• Parsons Brinkerhoff (Peter Doctors)
• Modern Roundabouts
• RoundaboutsUSA: Site contains photos of roundabouts in Utah, Colorado, and abroad.

All content contained within these materials is the intellectual property of Maryland State Highway Administration.