Abstract
With the aim of preventing traffic accidents by elderly drivers at night and during rainfall, the visibility of four differently colored (black, navy blue, blue, and transparent) umbrellas with reflective tape in three patterns (four places, around the circumference, and radial) as well as plain umbrellas with no tape attached was examined. 144 image samples taken at 10-meter intervals from distances between 20-100m were evaluated by 20 female students wearing simulated glasses for the elderly. The visibility of umbrellas without reflective material was significantly lower than that of transparent ones (70m: p<0.05, 30-60m: p<0.01). Comparing the visibility of umbrellas with different patterns of reflective material, the circumference and radial patterns were rated significantly higher than the plain and four places ones (p<0.001).
