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.

• Record URL:
  http://escholarship.org/uc/item/5ss288j8
• Record URL:
  http://escholarship.org/uc/search?entity=its_tsc_rw
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10551425
• Corporate Authors:

  University of California, Berkeley

  Safe Transportation Research and Education Center
  2614 Dwight Way, #7374
  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, MS-83
  Sacramento, CA  United States  94273-0001
• Authors:
  • Arnold, Lindsay S
  • Flannery, Aimee
  • Ledbetter, Lauren
  • Bills, Tierra
  • Jones, Michael G
  • Ragland, David
  • 0000-0002-8996-1320
  • Spautz, Laura
• Publication Date: 2013-4-1

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 81p.
• Serial:
  • PATH Research Report
  • Publisher: University of California, Berkeley
  • ISSN: 1055-1425

Subject/Index Terms

• TRT Terms: Crash rates; Cyclists; Demand; Pedestrian safety; Pedestrians; Risk assessment; Roundabouts; Route choice
• Uncontrolled Terms: Bicycle safety
• Subject Areas: Environment; Pedestrians and Bicyclists; Safety and Human Factors; I82: Accidents and Transport Infrastructure; I83: Accidents and the Human Factor;

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
• Files: CALTRANS, TRIS, STATEDOT
• Created Date: Aug 16 2013 11:37AM