High Visibility Conditions in a Sunset Environment
نویسندگان
چکیده
There is no standard for high-visibility safety clothing general pedestrians, nor it widely used. Therefore, this study investigated visibility in order to examine the standards pedestrians. Methods: Twenty healthy participants (mean age, 22.4 ± 4.4 years) without ocular disease, except refractive errors, were studied. All had visual acuity corrected vision. This assumed sunset conditions Japan. The light source was set up a dark room, and illuminance front of target 300 lx. We 142 patterns black yellow combination samples with different spatial frequencies, pattern types, angles, color ratios. Results: highest found at 5.0 cycles per degree stripe frequency, ratio 75%, angle 165°. Conclusions: Under conditions, brightness decreased when combined yellow. However, forms two-color becomes more conspicuous. obtained by arranging diagonal pattern. predict that establishing based on results will help design increased visibility.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2021
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app11167229