Identifying Factors that Determine Bicyclist and Pedestrian-Involved Collision Rates and Bicyclist and Pedestrian Demand at Multi-Lane Roundabouts

This project examined the safety and demand issues for pedestrians and bicyclists at multi-lane roundabouts through a literature review, case studies, in-field counts and surveys, focus groups, and video analysis. This document presents research findings, synthesizes current information on best practices, and makes recommendations to assist local agencies planning and designing safer multi-lane roundabouts. These findings should help local agencies and Caltrans create roundabouts that better and more safely address the needs of bicyclists and pedestrians. The current literature is referred to throughout the document to augment the research team’s findings, especially for issues that were beyond the scope of this project. Key findings in the areas of pedestrian and bicyclist avoidance of, behavior around, and collisions at multi-lane roundabouts are presented along with recommendations for geometric design, design speed, sight distance, width of lanes, signage and pavement markings, and operational recommendations.

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    University of California, Berkeley

    Safe Transportation Research and Education Center, 2614 Dwight Way
    Berkeley, CA  United States  94720-7374

    University of California, Berkeley

    Institute of Transportation Studies
    McLaughlin Hall
    Berkeley, CA  United States  94720

    California Department of Transportation

    Division of Research and Innovation, 1227 O Street, P.O. Box 942873
    Sacramento, CA  United States  94273-0001
  • Authors:
    • Arnold, Lindsay S
    • Flannery, Aimee
    • Ledbetter, Lauren
    • Bills, Tierra
    • Jones, Michael G
    • Ragland, David
    • Spautz, Laura
  • Publication Date: 2013-4-1


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 81p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01489938
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Report/Paper Numbers: CA10-1093, RR-2013-2, UCB-ITS-PRR-2013-2
  • Contract Numbers: 65A0208 TO 6222
  • Created Date: Jul 15 2013 7:08PM