2023 Volume 30 Issue 1 Pages 52-
For the purpose of preventing traffic accidents at night, the authors conducted evaluation experiments on the visibility of reflective materials for 20 female college students under two conditions: without (young age group) and with (elderly-simulated group) wearing elderly person simulation glasses. Reflective materials were used in the form of wristbands in five colors: pink, orange, yellow, green, and blue. These materials were attached to three different wearing positions: wrist, ankle, and wrist + ankle. The experiment used 150 image samples taken at 10-meter intervals from a distance of 10 to 100 meters on a sidewalk at night. Although there were differences depending on the distance, the visibility evaluation of the young age group was significantly higher than that of the elderly-simulated group in all three wearing positions of the five reflective material colors (p<0.05, p<0.01, p<0.001). The colors with a visibility evaluation of 3.5 (between "barely visible" and "slightly visible") at 40m of low beam irradiation were orange, yellow, and green in the young age group, and only yellow in the elderly-simulated group. In addition, both groups had the lowest visibility ratings when the reflective material was worn on the wrist.
