详情

Guidance to Improve Pedestrian and Bicycle Safety at Intersections

项目名称：	Guidance to Improve Pedestrian and Bicycle Safety at Intersections
摘要：	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.
状态：	Completed
资金：	500000
资助组织：	National Cooperative Highway Research Program
项目负责人：	Rogers, William C
执行机构：	University of North Carolina at Chapel Hill
主要研究人员：	Norback, Krista
开始时间：	20160719
预计完成日期：	20190430
实际结束时间：	20190430