Global ETD Search
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Showing 1 to 2 of 2 for “"Retroreflective signs"”.
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On-Road Investigation of Fluorescent Sign Colors to Improve Conspicuity
… for the evaluation of visual performance of retroreflective signs of various color combinations. Phase I was an off-road field experiment conducted to determine the best sign color combination, letter stroke width, and letter size for the emergency sign. Based upon the results of Phase I, …
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Improvement of Conspicuity for Trailblazing Signs
… coral, black on light blue, and yellow on purple signs were chosen for further testing against a baseline black on orange sign, all with 125-mm, D series letters. Study 2 was an on-road field study of conspicuity, conducted using an instrumented vehicle through a construction zone-related detour, …