大运高速公路北起大同,南至运城,纵贯山西8个市(地),25个乡镇,445个行政村,全长666公里,分别与京大、夏汾、太旧、运风、运三等高速公路相连,是国家规划并建设的“五纵七横”国道主干线二连浩特至河口在山西境内的重要路段,是国家确定的西部开发重要通道,也是山西省“三纵八横”公路主骨架中最重要的中轴主干线。大运高速公路于2000年9月22日奠基,全线采用全封闭、全立交、双向 The Dayun Expressway starts from Datong in the north and goes to Yuncheng in the south. It runs through 8 cities (prefectures), 25 towns and 445 administrative villages in Shanxi province with a total length of 666 kilometers. It connects with Beijing University, Xiafen, It is also an important passage for the development of the western region identified by the state as well as an important channel for the development of the western region in Shanxi Province. Eight horizontal "main road in the main skeleton axis of the main line. Dayun Expressway laid the foundation stone on September 22, 2000. The whole line is fully closed, all-round interchange, bidirectional