| 摘要 |
The invention relates to a retroreflective element to be used for marking side obstacles on a road, particularly resilient steel road guards, which constitutes a means of preventing the motor vehicles from leaving the roads, and at the same time being an obstacle for those leaving the roadway. According to the invention, the element consists of a metal plate (1) having a rhombus like shape provided at the ends with some clips (2) having orifices (a) for being secured to the road guard (4) by means of a screw (3), the plate (1) having a red colour retroreflective foil (b) applied on one of its halves and a white colour foil (c) on the other half. |
