区画線に添加するガラスビーズの再帰反射特性に関する三次元解析
1990 年 1990 巻 413 号 p. 39-47
詳細
1990 年 1990 巻 413 号 p. 39-47
For the purpose of increasing visibility of road markings at night, glass beads are mixed in and sprayed on the road markings. Almost all past studies on the retro-reflective characteristics of the glass beads are executed by means of experimental approaches.
Here, a technique of three-dimensional numerical analysis is proposed, and the proposed method is developed to be applicable to various condition of road markings, such as: material of road markings, quality and quantity of glass beads, and geometric and traffic features of road.
It is ascertained that the numerical results are fairly well agree with the observed ones. And we make clear how to fix glass beads in road markings for the purpose of getting efficient visibility.
