United States Department of Transportation
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Identifying Characteristics of High Risk Intersections for Pedestrians and Cyclists : A Case Study from Salt Lake County
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2012-09-01
[PDF-1.01 MB]
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Edition:Draft final; July 2011-Nov. 2012.
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Abstract:While the transportation network is meant to accommodate a variety of transportation modes, the experience varies for the users of each mode. For example; an automobile, cyclist, transit rider, and pedestrian will all have a very different experience traveling along the same corridor. Often, the physical characteristics of the system that make travel easier or more enjoyable for one mode may produce challenges or increase risk for users of another mode. This report provides an analysis of high-risk versus low-risk intersections (as defined by accident rates for non-motorized mode users) to determine what characteristics make intersections more dangerous for cyclists and pedestrians. Results show that simply incorporating longer signal lengths, providing dedicated right turn lanes, and adding street trees at intersections can significantly reduce the number of non-motorized accidents. Additionally, construction at intersections was shown to significantly increase the number of non-motorized incidents (particularly those involving pedestrians). Addressing these issues and enacting appropriate improvements will not only improve safety conditions for non-motorized users, but may also provide an enhanced travel experience for automobile travelers and result in additional external benefits of traffic calming and improved flow.
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