雾环境下山区高速公路车辆运行速度分析

科学地分析雾环境下山区高速公路车辆运行速度变化特征,为改善山区高速公路车辆运行环境,提高山区高速公路的运行安全性具有重要意义。为了能够清晰地描述山区高速公路车辆运行速度的变化规律,本文采用现场试验的方式收集驾驶员在雾环境下对车辆间距及目标物识别距离的判断情况,分析了不同能见度环境下车速的变化规律,研究表明山区高速公路行车过程中,驾驶员受雾环境的影响,能见度越低,驾驶员对车辆间距的估计值越大,对目标物的识别距离越短,平均运行速度越低。

Analysis of Vehicle Running Speed of Mountain Expressway in Fog Environment

It is of great significance to scientifically analyze the characteristics of vehicle speed changes in mountainous highways in foggy environments,in order to improve the vehicle operating environment of mountainous highways and improve the operational safety of mountainous highways.In order to clearly describe the changing law of the vehicle speed of mountain highways,field tests were used to collect the driver's judgment of vehicle distance and target recognition distance in foggy environment,and the analysis of the changing law of vehicle speed in different visibility environments was studied It shows that during driving on mountain highways,the driver is affected by the fog environment,the lower the visibility,the larger the driver’s estimated distance to the vehicle,the shorter the recognition distance to the target,and the lower the average running speed.