Meyer, Jason E.Gibbons, Ronald B.2013-07-182013-07-182011-03-2511-UL-09http://hdl.handle.net/10919/7408The focus of the current study is the comparison of multiple contrast metrics... The images of pedestrians from a previous nighttime research study were used for analysis. The pedestrians were clothed in both denim and black-colored clothing under both high-pressure sodium (HPS) and metal halide (MH) overhead lights, and images were captured at multiple distances. --executive summary.ix, 37 pagesapplication/pdfenIn Copyright (InC)TK4188 .M492 2011ebRoads -- Lighting -- MeasurementAutomobile driving at nightPedestriansReporthttp://scholar.lib.vt.edu/VTTI/reports/LuminanceMetrics4RoadwayLighting_03252011.pdf715245592