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高速公路与一般公路相比,具有线型好、设计标准高、交通流量大、行车速度快等特点,如不采用先进的管理措施,在交通量大、气候恶劣的情况下,极易发生交通事故和交通阻塞。高速公路监控系统是通过沿线的外场设施及时、准确、完整地收集并预告前方道路的各类信息,如交通量、事故、路况等,道路使用者可通过监控中心的设备直观地了解交通运行状况,在发生交通异常时,能及时确定事故区域,并实时发布相应的诱导和救援信息。
Compared with the general highways, the expressways have the characteristics of good linearity, high design standards, large traffic flow and fast driving speed. Without advanced management measures, traffic is prone to occur in heavy traffic and bad weather conditions Accidents and traffic jams. The expressway monitoring system collects and reports all kinds of information of the road ahead timely, accurately and completely by means of outlying facilities along the line such as traffic volume, accidents, traffic conditions, etc. Road users can intuitively understand the traffic conditions through the monitoring center’s equipment , In the event of traffic anomalies, the accident area can be determined in time, and timely release of appropriate guidance and rescue information.