United States Department of Transportation
i
Enhanced Night Visibility Series, Volume XII : Overview of Phase II and Development of Phase III Experimental Plan
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2005-12-01
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[PDF-630.04 KB]
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TRIS Online Accession Number:01036737
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Edition:Final Report
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Abstract:This volume provides an overview of the six studies that compose Phase II of the Enhanced Night Visibility project and the experimental plan for its third and final portion, Phase III. The Phase II studies evaluated up to 12 vision enhancement systems in terms of drivers’ ability to detect and recognize objects, visibility of pavement markings, and discomfort caused by glare from oncoming headlamps. Drivers’ ability to detect and recognize objects was assessed in clear, rain, fog, and snow conditions. The results indicated that supplemental ultraviolet headlamps do not provide sufficient benefit to justify further testing. The performance of supplemental infrared (IR) vision enhancement systems, on the other hand, was robust enough to suggest further investigation. As a result, additional IR testing, disability glare testing, and off-axis object detection on the Virginia Smart Road were proposed as a replacement for public road Phase III testing with UV–A. The details of the experimental plan for each of these testing areas are provided in the Phase III portion of this report.
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