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                NCHRP Report 5-19, "Analysis of Visual Performance Benefits from Roadway Lighting"
Publication Information
              Publication External Link:NCHRP Report 5-19, "Analysis of Visual Performance Benefits from Roadway Lighti...
              Publication Type:Report
                      Abstract:As part of National Cooperative Highway Research Program (NCHRP) Project 5-19, several analyses of the visual performance of drivers under different roadway lighting conditions were conducted using simulations based on photometrically accurate lighting software. The analyses assessed the role of different lighting characteristics as they affect visibility for drivers of different age groups. Analyses were conducted using the relative visual performance model, a model of suprathreshold visibility based on the luminance contrast, background luminance, and size of a visual target. In general, the analyses were consistent with the notion that lighting generally improves visibility and by inference, safety, when it provides illumination where potential hazards are likely to be located.
              Publishing Date:June 2009
              Posting Date:06/01/2009
                                              FHWA Program(s):Safety
              Research
              AMRP Program(s):Safety Data and Analysis
              FHWA Activities:Highway Safety Information System
              Subject Area:Safety and Human Factors U.S. DEPARTMENT OF TRANSPORTATION

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