FOREWORD The Federal Highway Administration’s (FHWA) Pedestrian and Bicycle Safety Research

Program’s overall goal is to increase pedestrian and bicycle safety and mobility. From safer crosswalks, sidewalks, and pedestrian technologies to growing educational and safety programs, the program strives to make it safer and easier for pedestrians, bicyclists, and drivers to share roadways in the future. This study was part of a larger FHWA research study to quantify the effectiveness of engineering countermeasures in improving safety and operations for pedestrians and bicyclists. This particular project focused on applications of shared lane markings, particularly the sharrow design, for bicycles and motor vehicles that have not yet been comprehensively evaluated in terms of effectiveness. The effort involved data collection and analysis to determine whether the sharrows resulted in changes in positioning of bicycles and motor vehicles on roadways, as well an examination of their interactions. This report is of interest to engineers, planners, and other practitioners who are concerned about implementing pedestrian and bicycle treatments as well as city, State, and local authorities who have a shared responsibility for public safety