The highway once foggy weather, the road of reduced visibility, not only reduce the driver's visual recognition ability, but also leads to the driver's psychological fatigue, ease of error in judgment and operation, causing many cars chain collisions of heavy accidents. In view of the highway in foggy day accident, fog area safety monitoring system has been paid more attention, which, as the road profile indication subsystem roadside high brightness in fog, fog weather effectively induced traffic. However, roadside fog lamp design based on accident statistics analysis and engineering experience are presented, in the control strategy, the engineering design and type selection of fog, the lack of theoretical guidance, the fog system can not give full play to the traffic induced effect. In the superhighway fog area security technology, foreign studies focused on the mechanism of the influence of fog on visibility, as well as the road weather information system. Among them, the United States is now an established road weather information system 1], along the road to lay a certain number of observation stations, and through the development of fixed line standard, calibration standards and communication standards, implementation of RWIS states in the United States the application of standardized. Through the analysis of domestic research of FOG 's influence on traffic safety mechanism, for the establishment of specific road project forecast, monitoring, control system, thereby reducing the fog area traffic conflict, ensure the traffic safety. Wide this paper analyses Expressway fog light control strategy, put forward the engineering design method of fog lamp fog lamp, quantitative selection formula, so that the system of highway roadside fog lamp control and setting technology of.

高速公路上一旦出现雾天气,道路能见度降低,不仅降低驾驶员视认能力,而且导致驾驶员心理疲劳,易判断与操作失误,进而引发多车连环追尾的重特大交通事故。道路气象信息系统。其中,美国目前正在建立的道路气象信息系统(RWIS2RoadWeatherInformationSystem)[1],在道路沿线布设一定数量的观测站,并通过制定定线标准、校准标准和通信标准,实现RWIS在美国各州的应用标准化针对高速公路雾天事故,雾区安全监控系统得到日益重视,其中,作为道路轮廓指示子系统的路侧高亮度雾灯,可在雾天气下有效诱导车流运行。然而,路侧雾灯设计多根据事故统计分析与工程经验提出,在控制策略、工程设计与雾灯选型上,缺乏理论指导,使雾灯系统不能充分发挥交通诱导作用。在高速公路雾区安全技术上,国外研究集中于雾对能见度影响的机理研究,以及。国内研究多通过分析雾对交通安全的影响机理,建立面向具体道路项目的预报、监测、控制系统,从而降低雾区交通冲突,保障交通安全。广本文分析高速公路雾灯控制策略,提出雾灯工程设计方法,研究雾灯定量选型公式,从而得出系统性的高速公路路侧雾灯控制与设置技术。