Guidance to Improve Pedestrian and Bicycle Safety at Intersections

More than 4,000 pedestrians and 700 bicyclists were killed in collisions with motor vehicles in the United States in 2012. Improving pedestrian and bicycle facilities at intersections is clearly a critical safety need. Pedestrian crashes often occur at intersections involving automobiles turning left and striking pedestrians in the far crosswalk, or automobiles turning right and striking pedestrians in the near or far crosswalk. This includes situations where drivers are allowed to make a right turn on red. Of particular concern for bicyclist safety at intersections is the conflict between bicyclists traveling straight and automobiles from the opposite direction turning left across the path of bicyclists. In addition, there are often conflicts between bicyclists traveling straight and automobiles from the same direction turning right across the path of bicyclists. A third common type of bicycle crash involves motorists emerging from side streets and not yielding to through-moving bicyclists. Despite the widespread acknowledgement of these problems, and the growing use of bicycles in metropolitan areas, transportation engineers and planners still lack definitive guidance on which types of intersection designs and operational treatments have the greatest safety benefits for pedestrians and bicyclists, nor the most appropriate situation in which each should be applied. Engineering judgment will still be needed in many cases, but better guidance for applying typical and innovative intersection design treatments will help improve pedestrian and bicycle safety. The objective of this research is to develop guidance for transportation practitioners to improve pedestrian and bicycle safety at intersections through design and operational treatments that (1) identifies and evaluates current practices, and emerging technologies and trends, in the U.S. and internationally; (2) describes current best practices for measuring the effectiveness of such intersection treatments; (3) evaluates safety outcomes of specific intersection treatments using quantitative measures; and (4) identifies and ranks strategies, processes, and relationships that could accelerate the adoption of improved pedestrian and bicycle intersection design and operational treatments. The approaches to evaluate pedestrian and bicycle treatments can be separate, but implementation of the treatments should be coordinated.

Language

  • English

Project

  • Status: Active
  • Funding: $500000
  • Contract Numbers:

    Project 15-63

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Rogers, William

  • Performing Organizations:

    University of North Carolina at Chapel Hill

    UNC-CH New East Building
    Campus Box #3140
    Chapel Hill, North Carolina  United States  27599-3140
  • Principal Investigators:

    Norback, Krista

  • Start Date: 20160719
  • Expected Completion Date: 20190430
  • Actual Completion Date: 0
  • Source Data: RiP Project 40212

Subject/Index Terms

Filing Info

  • Accession Number: 01572387
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 15-63
  • Files: TRB, RiP
  • Created Date: Aug 7 2015 1:01AM