| 摘要 |
PROBLEM TO BE SOLVED: To form a road indication sheet with an excellent visualization in a period of raining, in particular, in a period of raining at night and with the capability of being improved in abrasion by vehicle or vibration or noise of vehicles. SOLUTION: The road indication sheet is formed such that it consists mainly of rubber or resin, at least a part of the sheet surface projects upon absorption, and when dried, it returns from a projected state to almost the original state. Particularly, the road indication sheet is composed of a surface layer 30, intermediate layer 20, and foundation layer 10, and the intermediate layer 20 is preferable to be water absorptive polymer or a layer containing water absorptive polymer. Also, it is preferable that a great number of fine pores are formed piercing from the surface layer 30 to the intermediate layer 20. In addition, it is preferable to contain a number of glass beads and/or light accumulation pigments in the vicinity of the surface of the road indication sheet. |
