前言高速公路,指平均昼夜车辆交通量为25000辆以上、专供汽车分道高速行驶、并全部控制出入的公路,其建设情况反映了一个国家和地区的交通发达程度、乃至经济发展的整体水平。伴随着“要想富、先修路”的民间老话,高速公路在中国快速延伸,高速公路监控也早已引入交管建设系统中并发挥着越来越重要的作用。 Introduction Expressway refers to the average traffic day and night vehicles for more than 25,000 vehicles dedicated to high-speed road traffic, and all control access to the road, its construction reflects the level of traffic developed in a country and region, and even the overall level of economic development . Accompanying the popular saying of “want to get rich, build roads first”, expressways are rapidly expanding in China and monitoring of expressways has long been introduced into the system of traffic management and playing an increasingly important role.