一、高速公路清障救援队伍的重要作用高速公路是公路运输的主动脉,确保其畅通、安全具有十分重要的经济、社会和环境意义。做好这项工作的关键环节在于如何建立健全科学、高效和安全、可靠的高速公路交通事件管理及处置机制。所谓“交通事件”是指引起车道通行能力减少或需求增加的偶发性非正常事件。它的发生一方面会使道路通行能力下降,从而造成拥堵。例如,三车道高速公路其中一条车道被阻断可以将车道整体通行能力减少近50%,而两个车道被阻断将使车道整体 First, the important role of the highway bailout rescue team Expressway is the aorta of road transport, to ensure its smooth, safe has a very important economic, social and environmental significance. The key to doing this is how to establish and perfect a scientific, efficient and safe highway traffic accident management and disposal mechanism. The so-called “traffic incident ” refers to incidental lane incidents caused by reduced capacity or increased demand of occasional non-normal events. Its occurrence on the one hand will reduce the capacity of the road, resulting in congestion. For example, blocking one of the lanes of a three-lane highway can reduce overall lane capacity by nearly 50%, while blocking two lanes will make the lane as a whole