Recommended Reading

Roundabout Publications

The Traffic Capacity of Roundabouts, Kimber, R.M., TRL Laboratory Report LR942, 1980.

Accidents at 4-Arm Roundabouts, Maycock, G. and R.D. Hall,TRL Laboratory Report LR1120, 1984.

Geometric Design of Roundabouts, TD 16/07, U.K. Department for Transport, 2007.

The Design of Roundabouts, Brown, Dan, TRL State of the Art Reviews, London, HMSO, 1995.  (This is an excellent book on the history and state of the art in roundabout design. Available from Her Majesty’s Stationery Office in the U.K.)

Design and Safety Information

Roundabout Design Guidelines, Ourston Roundabout Engineering, Inc. 2001

Roundabouts: An Informational Guide, FHWA, June 2000

Wisconsin Roundabout Guide, December 2008

NCHRP Synthesis 264, Modern Roundabout Practice in the United States, TRB, 1998

Crash Reductions Following Installation of Roundabouts in the United States, IIHS, March 2000

Feature Articles and Papers

Roundabouts: A Direct Way to Safer Highways, by Leif Ourston and Joe Bared, Public Roads, FHWA, Fall 1995

Clearwater Roundabout Report, by Barry Crown

Article on RODEL and Gap Theory, by Barry Crown

Further Reading

Publications by Ourston Roundabout Engineering - A list of publications specifically by Ourston Roundabout Engineering, Inc.

General Roundabout Research - An extensive list of publications pertaining to roundabout research.

Roundabout Guideline Publications - A list of resources for roundabout guidelines.