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原文传递 Evaluation of Bike Boxes at Signalized Intersections.

题名：	Evaluation of Bike Boxes at Signalized Intersections.
作者：	J. Dill; C. Monsere; N. McNeil;
关键词：	pavement markings,bicyclists,signalized intersections,advanced stop lines,bike boxes/user perceptions, surveys, behavior, motor vehicle operators, literature reviews, methodologies, video surveillance/user perceptions, surveys, behavior, motor vehicle operators, literature reviews, methodologies, video surveillance
摘要：	This report presents a before-after study of bike boxes at 10 signalized intersections in Portland, Oregon. The bike boxes, also known as advanced stop lines or advanced stop boxes, were installed to increase visibility of cyclists and reduce conflicts between motor vehicle and cyclists, particularly in potential-right-hook situations. Before and after video were analyzed for seven intersections with green bike boxes, three intersections with uncolored bike boxes, and two control intersections. User perceptions were measured through surveys of cyclists passing through five of the bike box intersections and of motorists working downtown, where the boxes were concentrated. Both the observations and survey of motorists found a high rate of compliance and understanding of the markings. Overall, 73%of the stopping motor vehicles did not encroach at all into the bike box. Both motor vehicle and bicycle encroachment in the pedestrian crosswalk fell significantly at the bike box locations compared to the control intersections. The bike boxes had mixed effects on the motorists' encroachment in the bicycle lane. / Supplementary Notes: Sponsored by Oregon Transportation Research and Education Consortium (OTREC), Portland, OR. and Department of Transportation, Washington, DC. Research & Innovative Technology Administration (RITA). / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A08 / Corporate Author Code: 044400000 / Classifivation: Unclassified report
报告类型：	科技报告