| 摘要 |
PROBLEM TO BE SOLVED: To improve the visual confirmability of a road-sign by drawing a plurality of section patterns by either a pavement material or coating formed of imitation stone concrete, synthetic resin, ceramics and other materials, or the combination thereof, arranging the patterns in a solid figure so as to have a positional relation of expressing the lightness difference between the section patterns as a shadow. SOLUTION: A white section pattern 1a, an yellow section pattern 1b, a red section pattern 1c, and a brown section pattern 1d are arranged in a left side surface part 2a, a top surface part 2b, a front surface part 2c, and a right side surface part 2d, respectively, whereby a solid figure 3 is formed. Each section pattern 1 can be visually confirmed as the shadow becomes successively dark in the order of the top plate part 2b, the front surface part 2c, and the right side surface part 2d, and it looks as if the light beam is emitted from above the left front of a virtual solid figure swollen in trapezoidal form. Since each section pattern 1 flatly arranged is a solid figure having the shadow, it can be visually confirmed just as a three-dimensionally swollen road-sign. |
