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2016
Guidelines for Nighttime Visibility of Overhead Signs

NCHRP Report, Issue 828, 83p

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2014
Photometric Evaluation of Steady-Burn Warning Lights in Work Zones

Transportation Research Record: Journal of the Transportation Research Board, Issue 2458, pp 88–95

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2010
Safety Evaluation of Improved Curve Delineation with Signing Enhancements

Transportation Research Board 89th Annual Meeting, 18p

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2007
Effect of Retroreflecting Performance for Traffic Signs by Driving Visibility Evaluation Under Foggy Conditions

Transportation Research Board 86th Annual Meeting, 16p

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2006-03
Research Pays Off: Improving Guide Sign Legibility: New Lettering Reads Larger, Clearer, Farther

TR News, Issue 243, pp 34-35

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1999
LABORATORY-ACCELERATED VERSUS OUTDOOR WEATHERING FOR RETROREFLECTIVE SHEETING SPECIFICATIONS

Transportation Research Record, Issue 1657, p. 63-70

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1992
INNOVATIVE PASSIVE DEVICE STUDIES AND DEMONSTRATIONS CURRENTLY BEING CONDUCTED IN THE UNITED STATES AND CANADA

Transportation Research Record, Issue 1368, p. 39-48

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