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原文传递 Lighting Levels for Isolated Intersections: Leading to Safety Improvements.

题名：	Lighting Levels for Isolated Intersections: Leading to Safety Improvements.
作者：	Edwards, C.
关键词：	Street lighting, Intersections, Traffic safety, Rural areas, Rural intersections, Lighting levels, Isolated intersections, Illuminance, Nighttime crashes, Roadway lighting, Crash rates
摘要：	A number of studies have linked the benefits of roadway lighting to a reduction in crash rates at night for a variety of roadway types including rural intersections. Assessing the effectiveness of intersection lighting has primarily relied upon crash database modeling comparing lighted intersections to unlighted intersections. The current research effort gathered similar metrics for comparison but also measured the amount of lighting within isolated rural intersections. Sixty-three intersection locations were chosen for lighting measurement from six different counties within Minnesota. A vehicle mounted illuminance meter data collection system was used to collect data at each intersection. The data collection system utilized five separate illuminance meters and captured horizontal illuminance while driving through all 63 intersection locations. Following data collection, a series of negative binomial regression models were used to assess the horizontal lighting level in conjunction with the nighttime crash ratio, intersection configuration type, and proximity of an intersection to a curve in the roadway.
总页数：	Edwards, C.
报告类型：	科技报告