浅谈道路交通标志用反光膜的大角度性能

Elementary Discussion on Angularity Performance of Reflective Sheeting Used for Traffic Sign of Road

通过分析国内关于交通标志视认性的研究,得出标志的最远可视认距离和消失距离。并计算出不同车型的车辆在最远可视距离和消失距离之间,车前灯对于交通标志的入射角和驾驶员对于交通标志的观察角变化范围。最后,根据理论推算值指出标志反光膜的选择应注意使用具有大角度性能的反光膜。

By analyzing the research result of legibility on traffic sign in China, the article gives the most-distant legibility distance and disappear distance of traffic sign, calculates the angle of incidence of vehicle headlight for traffic sign and the observation angle changing range of the drivers for traffic sign of thedifferent types of vehicle between the most-distant legibility distance and disappear distance, and finally points out that the reflective sheeting of sign should be selected by the angularity performance of reflective sheeting according to the theoretical calculated values.