General Roundabout Research
ARINIELLO, ALEX, J. “Are Roundabouts Good for Business?” LSC Transportation Consultants Inc., 2004.
BARANOWSKI, B. “Roundabout and Light Rail Combined: An
Innovative Intermodal Solution.” National Roundabout Conference
(Draft), Vail, Colorado, 2005.
CROWN, R.B., “Entryway Roundabout: Review of Operation and Safety” for the City of Clearwater. Rodel Software Ltd., 2001.
BARANOWSKI, B. “Pedestrian Crosswalk Signals at
Roundabouts: Where are They Applicable?” National Roundabout Conference
(Draft), Vail, Colorado, 2005.
BARANOWSKI, B.; WADDELL, E. “Alternative Design Methods
for Pedestrian Safety at Roundabout Entries and Exits: Crash Studies
and Design Practices in Australia, France, Great Britain and USA”
Michigan Department of Transportation (DOT) 2003.
BARED, J.; Prosser, W.; Esse, C. “State-of-the-art design of roundabouts”. Transportation Research Record. (1579) pp 1-10. 1997.
BRIGHAM YOUNG UNIVERSITY DEPARTMENT OF CIVIL & ENVIRONMENTAL ENGINEERING
“Evaluation of Four Recent Traffic and Safety
Initiatives” Volume 1: Developing Guidelines for Roundabouts. Final
Report, October 2005.
FLANNERY, A; ELEFTERIADOU, L. “A Review of Roundabout
Safety Performance in the United States.” ITE International Conference,
March 28 – 31, 1999.
FLORIDA DEPARTMENT OF TRANSPORTATION “Bicycle and
Pedestrian Considerations at Roundabouts”, RTB, Subcommittee on
Roundabouts, Summary of Final Report, WPI #0510824. Vail, Colorado, May
FORTUIJN, LAMBERTUS (G.H.). “Pedestrian and
Bicycle-Friendly Roundabouts; Dilemma of Comfort and Safety”, Delft
University of Technology, The Netherlands.
GRANA, A; GIUFFRE, T. “Performance Analysis of
Roundabouts in Strongly Contained Environment; Case Studies in Urban
Areas.” National Roundabout Conference (Draft), Vail, Colorado, 2005.
HÉTU, MARTIN “Roundabout Performance, Safety, Capacity and Signing”, TAC 2000.
HARPER, N., DUNN, R.“Preliminary Results for Accident Prediction at Urban Roundabouts in New Zealand”, ITE Seattle, 2003.
INMAN, V.W.; KATZ, B.J. “Navigation Signing for Roundabouts” National Roundabout Conference (Draft), Vail, Colorado, 2005.
INMAN, VAUGHAN. W. “Field Observations of Path and
Speed of Motorists at Double-Lane Roundabouts,” Federal Highway
INSURANCE INSTITUTE FOR HIGHWAY SAFETY “A Review of
Evidence-based Traffic Engineering Measures to Reduce Pedestrian-Motor
Vehicle Crashes.” Original Submission August 1, 2003.
JACQUEMART, G.; OURSTON, L. “NCHRP Synthesis 264,
Modern Roundabout Practice in the United States”. 1998. Leif Ourston
contributed some forty hours of edits and additions to Mr. Jacquemart's
JOHNSON, M. “Hanson Road Overpass Alternatives Analysis” Wisconsin Department of Transportation. 2000.
JOHNSON, M.T. “Achieving Traffic and Transportation
Solutions Through Excellence in Modern Roundabout Design.” MTJ
Engineering, May 2005. This letter summarizes the capacity analysis and
preliminary designs for the east and west sides of US23.
JOHNSON, M.T.; HANGE, W.A. “Modern Roundabout
Intersections: When to Use Them?: A Comparison with Signalized
KARSTON, G.; BAASS; BRILON, W. “Roundabouts Providing
an Excellent Service to the Road User.” 1995 Annual meeting of the
Transportation Association of Canada.
KINZEL, C.S. “Signing and Pavement – Marking Strategies
for Multi-Lane Roundabouts: An Informal Investigation”. Urban Street
Symposium, July 2003.
KYTE, M.; DIXON, M.; LIST, G.; FLANNERY, A; RODEGERDTS,
L. “NCRHP 2-65: Data Collection and Extraction.” National Roundabout
Conference (Draft), Vail, Colorado, 2005.
LEAF, W.A.; Preusser, D. F. “Literature Review on
Vehicle Travel Speeds and Pedestrian Injuries”, U.S. Department of
Transportation, National Highway Traffic Safety Administration, October
In this report the relationship between vehicle travel
speeds and resulting pedestrian injury was reviewed in the literature
and in existing data sets.
LEE, J.C.; KIDD, B.D.; ROBENSON, B.; SCHRBROGH, W.
“Roundabouts: An Arizona Case Study and Design Guideline Final Report
545” Arizona Department of Transportation, July 2003.
LENTERS, M.S. “Roundabout Planning and Design For
Efficiency & Safety”. Annual Conference of The Transportation
Association of Canada, St. John’s Newfoundland and Labrador. 2003.
LENTERS, M.S. “Safety Auditing Roundabouts”. Annual
Conference of the Transportation Association of Canada, Québec City,
LENTERS, M; KUHLOW, K. “Evaluation of Alternative
Traffic Controls.” Department of Transportation of Wisconsin, June
2005. This report was prepared for D.O.T. of Wisconsin to evaluate
alternative traffic controls for STH 28 (Washington Avenue) from County
Trunk Highway ‘A’ to Greenwing Drive.
LENTERS, M; WEBER, P. “Roundabout Feasibility Study: Britton Parkway, City of Hilliard, Ohio.” December 2004.
LSC TRANSPORTATION CONSULTANTS “Existing Roundabouts at Mountain Resorts.” Town of Truckee, California, 2002.
LORD, D.; SCHALKWYK, I.V.; CHRYSLER, S.; STAPLIN, L. “A
Strategy to Reduce Older Driver Injuries at Intersections Using More
Accommodating Roundabout Design Practices.” Paper submitted for
publication to accident analysis and prevention as a ‘short
communication’. March 21, 2006.
MANDAVILLI, S; RUSSELL, E; RYS, M. “Environmental Impact of Kansas Roundabouts”. TAC Conference, Spring 2003.
MYERS, E. J. “Accident Reduction with Roundabouts”. ITE Annual Meeting Compendium, 1999.
This paper is an update to a paper the author co-wrote
with Michael E. Niederhauser and Brian A. Collins for the 1997 Annual
Meeting in Boston. The paper will update the accident statistics at the
five initial sites where roundabouts have been installed by Maryland
State Highway Administration.
NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM. NCHRP Synthesis 264: “Modern Roundabout Practice in the United States”. 1998.
NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM. Project 3-65: “Applying Roundabouts in the United States”, July 2004.
NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM. Project
3-65: “Review Summary of Models Relating Safety to Roundabout
Characteristics”, July 2004.
NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM. Project 3-65: “Applying Roundabouts in the United States”, May 2006.
NORTH CAROLINA STATE UNIVERSITY. “The effects of
roundabouts on pedestrian safety”. Raleigh, Department of Civil
Engineering, Raleigh, NC, USA. pp 50. August 2002. This research seeks
to examine the safety issues by summarizing the literature that
describes international and U.S. experience with roundabouts and
pedestrian safety. The research applies three alternate approaches to
assess pedestrian safety at roundabouts: case study analysis,
statistical analysis, and simulation analysis to compare pedestrian
safety at a conventional signalized intersection to a case study modern
OH, H.; SISIOPIKU, V.P. “Probabilistic Models for
Pedestrian Capacity and Delay at Roundabouts.” Transportation Research
OURSTON, L. "Roundabout Revolution Comes to America". Leif Ourston, WesternITE, November-December 1992.
OURSTON, L. "Roundabouts Increase Interchange
Capacity". ITE Journal, December 1997. Greg Hall of Vail also authored
OURSTON, L. "America's First Modern Roundabout
Interchange". Leif Ourston, Presented to the 66th annual meeting of ITE
in Denver, CO. August 1995.
OURSTON, L. "British Interchanges, Intersections, and Traffic Control Devices". Leif Ourston, WesternITE, 1987.
OURSTON, L. "British-style Roundabout or American-style Traffic Circle". WesternITE, December 1987.
OURSTON, L. "Nonconforming Traffic Circle Becomes
Modern Roundabout". Presented to ITE 64th annual meeting, in Dallas,
TX, October 1994.
OURSTON, L. “Wide Nodes and Narrow Roads". Paper
presented to the Transportation Research Board, 72nd annual meeting in
Washington, DC, January 1993.
OURSTON, L. "Where to Build Roundabouts". Presented to an International Meeting on Roundabouts, ITE, Loveland, CO, October 1998.
OURSTON, L. “Roundabout Design Guidelines”. Ourston Roundabout Engineering, 2001.
OURSTON, L. “Roundabouts: An Informational Guide”.
FHWA-RD-00-067, June 2000. Mr. Ourston contributed his expertise as a
technical editor of this document.
OURSTON, L.; BARED, J.G. "Roundabouts: A Direct Way to
Highway Safety". Public Roads, Autumn 1995. Co-authored with Joe G.
Bared of the Federal Highway Administration. This was a synthesis, and
its original title when submitted in May of 1995 was "Synthesis of
Recent Research on Highway Safety".
OURSTON, L.; BURNSIDE, J. "The Option of Roundabout Interchanges". WesternITE. May 2000.
OURSTON, L.; HALL G.A. “Roundabout Increase Interchange Capacity.” ITE Journal. December 1997.
OURSTON, L.; HALL, G.A. "Modern Roundabout Interchanges
Come to America". Leif Ourston, Presented to ITE 66th annual meeting in
Minneapolis, MN, September 1996. Gregory A. Hall, co-author.
PEREZ, R.A.; ATCHISON, T. “Modern Roundabouts as an Access Management Tool”. 4th National Access Management Tool, August 2000.
PERSAUD, B.N.; RETTING, R.A.; GARDER, PER. E.; LORD, D.
“Crash Reduction Following Installation of Roundabouts in the United
States.” Insurance Institute for Highway Safety, March 2000.
REDINGTON, T. “Montpelier’s Modern Roundabout at Keck
Circle – Neighborhood Opinion Survey.” Vermont Agency of
Transportation, January 1997.
REDINGTON, T. “The Impact of Modern Roundabouts on
North American Traffic Circulation, Modal Choice, Sustainable
Development Land Use.” Canadian Transportation Research Forum 34th
Annual Conference, 1999.
The thesis of this paper is that the modern roundabout
significantly alters for the better traditional access equation that
determines development densities, so that both current and planned land
use densities can naturally increase in urban areas.
RETTING, RICHARD A.; FERGUSON, SUSAN A.; MCCARTT, ANNE
T. “A Review of Evidence-Based Traffic Engineering Measures to Reduce
Pedestrian-Motor Vehicle Crashes”. IIHA, 2003. This study provides a
brief critical review and assessment of engineering and modifications
to the built environment that can reduce the risk of pedestrian
RILLING, M. “Injury Accident Statistics – High Speed
Roundabouts vs. High Speed Signals.” Washington State Department of
RITCHIE, S. “Cotton Lane/Estrella Parkway Connection
Roundabout Report”: Roundabout and Traffic Engineering (RTE), April
2005. This report outlines the analysis of the proposed design with
information and recommendations to the Traffic Control device
recommended for implementation (signal or roundabout) at the
intersection of Cotton Lane/Estrella Parkway.
RITCHIE, S.; LENTERS, M.S. “High Speed Approaches At
Roundabouts”. East West Partners, California Department of
Transportation and the Transportation Research Board at Vail Colorado,
RODGERDTS, L.A. “Progress on Proposed Roundabout
Elements for HCM” HCQS Committee Workshop. January 21, 2006. The
objectives of the workshop were to provide information to HCQS
Committee on progress to date of NCHRP 3-65 and HCM procedure
development. Moreover, to engage the Committee in discussion of key
issues regarding progress.
RUNGE, C. “Linville Road Roundabout Study” Published by The Brown County Planning Commission, November 7, 2001.
RUSSELL E; RYS, M; LUTTRELL, G. “Roundabout Studies in
Kansas”, 4th Transportation Specialty Conference of the Canadian
Society for Civil Engineering. June 5 – 8, 2002. Montreal, Quebec,
RUSSELL, E.R.; MANDAVILLI, S.; RYS, M.J.
“Operational Performance of Kansas Roundabouts: Phase II.” May 2005
SARGEANT, S.; STEPHEN, C. “Performance Evaluation of
Modern Roundabouts on South Golden Road”. The University of New
Brunswick. March 2002.
The report provides a review of the selected corridor
design, which incorporates four modern roundabouts and compares it to
the original partially-signalized configuration.
SHIELDS, B. “133rd Street and Lamar Intersection
Project.” An Intra-City communication while constructing a modern
roundabout at the intersection of 133rd Street and Lamar Avenue was
discussed. Kansas Department of Transportation (KDOT) April 27, 2005.
SCHUR, K; ABOS-SANCHEZ, J. “Effects of Central Island
Landscaping Treatments at Single-Lane Roundabouts” Mid-America
Transportation Center, Department of Civil Engineering, College of
Engineering and Technology, University of Lincoln-Nebraska, March 2005.
STANEK, D; MILAN, R.T. “High-Capacity Roundabout
Intersection Analysis: Going Around in Circles”. Fehr & Peers
Associates Inc. 2004. This paper compares the capacity analysis
suggested in the FHWA guide with the results of the analysis software
packages RODEL, aaSidRA, VISSIM and Paramics.
TOTTEN SIMS HUBICKI ASOCIATES“Modern Traffic
Circles/Roundabouts Study.” Assignment #9720-7362-2879, Ministry of
Transportation Ontario, April 2000.
WADDELL, E., “Evolution of Roundabout Technology: A
History-Based Literature Review,” Compendium of Technical Papers, 67th
Annual Meeting, Institute of Transportation Engineers, Boston (August
WADDELL, E.; ALBERTSON, J. “The Dimondale Mini:
America’s First Mini Roundabout.” TRB, Subcommittee on Roundabouts.
International Conference on Roundabouts. Vail, Colorado, May 2005.
WEBER, P.; RITCHIE, S. “Internationally Recognized
Roundabout Signs” May 2005. Paper for the Transportation Research
Board, National Roundabout Conference, Vail, Colorado, Mary 22-25,
ZEGEER, C.V., STEWART, J.R., HUANG, H.H. “Safety
Effects of Marked Versus Unmarked Crosswalks at Uncontrolled
Locations.” U.S. Department of Transportation. FHWA-HRT-04-100, 2005.