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原文传递 Improving Pedestrian Safety at Unsignalized Crossings. Appendices B to O

题名：	Improving Pedestrian Safety at Unsignalized Crossings. Appendices B to O
作者：	Fitzpatrick, K.; Turner, S.; Brewer, M.; Carlson, P.; Ullman, B.
关键词：	Pedestrian safety##Pedestrian croasing##Mobility##Appendices##Accessibility##Transit industries##Safety devices##Pedestrian accidents##Mass transportation##Monitoring##Uncontrolled intersections##Four way stop intersections##Two way stop intersections##
摘要：	A recent research project jointly sponsored by the Transit Cooperative Research Program and the National Cooperative Highway Research Program had two main objectives: (a) recommend selected engineering treatments to improve safety for pedestrians crossing highvolume, high-speed roadways at unsignalized intersections, in particular those served by public transportation; and (b) recommend modifications to the Manual on Uniform Traffic Control Devices (MUTCD) pedestrian traffic signal warrant. The research team developed guidelines that can be used to select pedestrian crossing treatments for unsignalized intersections and midblock locations (Guidelines for Pedestrian Crossing Treatments). Quantitative procedures in the Guidelines use key input variables (such as pedestrian volume, street crossing width, traffic volume, etc.) to recommend one of four possible crossing treatment categories. The research team developed and presented recommendations to revise the MUTCD pedestrian warrant for traffic control signals to the National Committee on Uniform Traffic Control Devices. In accomplishing the two main study objectives, the research team also developed useful supporting information such as the findings from the field studies on walking speed and motorist compliance. Pedestrian walking speed recommendations were 3.5 ft/s (1.07 m/s) for general population and 3.0 ft/s (0.9 m/s) for older or less able population. Motorist compliance (yielding or stopping where required) was the primary measure of effectiveness for engineering treatments at unsignalized roadway crossings. The study found that the crossing treatment does have an impact on motorist compliance, and other factors influencing the treatment effectiveness were number of lanes being crossed and posted speed limit.
总页数：	270
报告类型：	科技报告