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Firefighter daytime visibility: trim properties and conspicuity

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Academic year: 2020

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Figure

Fig. 1 by the NFPA 1971–2013 standard (left) and an experimenter wearing firefighter turnout gear (right); trim stimulus and turnout gear when viewed from afar; samples with alternating bands of fluorescent, retroreflective, and fluorescent material; a An experimenter holding a trim stimulus used in study 1 with the minimal trim pattern prescribed b c traditional solid lime yellow and orange-red trim d more recently developed segmented lime yellow and orange-red trim samples
Table 1 Trim characteristics (%Y and  chromaticity coordinates at  illumination D65 and  45/0 geometry with  2° standard observer and  a  black underlay) and  conspicuity measures (person detection distance, peripheral person detection angle, and peripheral color recognition angle) of trims 1–8 (study 1) and trims 1–10 (study 2)
Fig. 2 Overview of the roadway scene. Each trial started at 587 meters (not indicated in the figure)
Fig. 3 Experimental set-up of study 2. Trims were presented at two angle locations, 60.19 or 77.38° from the left most cone at a distance of 30 m
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