在影响交通安全的环境因素中,雾天是最为恶劣的气候条件,雾天发生的交通事故数量要比平常高出好几倍。因浓雾造成几十辆车连续追尾事故屡见不鲜,损失惨重。因此,如何保证雾中行车安全就显得尤为重要。 雾是空气中所含的水汽多于一定温度条件下的饱和水汽量时,在早、晚时间由于辐射降温的作用,多余的水汽凝结成的小水滴或 Among the environmental factors that affect traffic safety, the haze is the harshest climatic conditions, and the number of traffic accidents in foggy days is several times higher than usual. Due to heavy fog caused dozens of cars rear-end accidents are common, heavy losses. Therefore, how to ensure traffic safety in the fog is particularly important. Fog is the water vapor contained in the air more than a certain temperature under the conditions of saturated water vapor, in the early and late hours due to radiation cooling effect, excess water condensation into small droplets or