详情

Right-turn Safety for Walking/bicycling: Impacts of Curb Radii and Other Factors

项目名称：	Right-turn Safety for Walking/bicycling: Impacts of Curb Radii and Other Factors
摘要：	A significant portion of roadway crashes occur at intersections, and crashes/conflicts between right-turning vehicles and pedestrians and bicyclists are common. There are limited studies focusing on crashes between right-turning vehicles and pedestrians and bicyclists. In 1981, a report published by the National Highway Traffic Safety Administration noted that crashes between motor vehicles and pedestrians increased by 43-107% when right-turn-on-red (RTOR) was implemented (“The Effect of Right-Turn-On-Red on Pedestrian and Bicycle Accidents”, Preusser et. al.). A study in 2006 found that of 255 vehicle-pedestrian crashes at intersections, 32% involved right-turning vehicles (https://www.ncbi.nlm.nih.gov/pubmed/16990243). Conceptually, turning speeds could be reduced and yielding behavior (and pedestrian visibility) potentially increased by using smaller curb radii (a recommendation in the FHWA’s PEDSAFE Pedestrian Safety Guide and Countermeasure Selection System), but this treatment may have a negative impact on turning for large vehicles. Nevertheless, there are few studies of the impacts of curb radius (or other design and operational factors) on right-turn and pedestrian/bicyclist safety. This project will address this gap in understanding right-turn intersection safety using a “mixed-methods” approach, a process that includes analyzing crash data, collecting and analyzing observations of road user behaviors, and collecting and analyzing responses to a road user survey.
状态：	Active
资金：	50000
资助组织：	Utah Department of Transportation<==>Civil & Environmental Engineering Department
执行机构：	Civil & Environmental Engineering Department
开始时间：	20201207
预计完成日期：	20220430
主题领域：	Pedestrians and Bicyclists；Safety and Human Factors；Transportation (General)