Hefei Ring Expressway is located in the periphery of Hefei City, Anhui Province, the whole line is a ring, with a total length of 105 kilometers, which is composed of four sections open to traffic in different periods. Among them, the south ring section, 42 kilometers, is composed of the He-ning Expressway completed and opened to traffic in November 1995 (the Longtang-Longxi Interchange was opened to traffic in April 1991), with eight lanes in both directions.The 5km East Ring is composed of the He-Xu Expressway, which opened to traffic in June 2001, and has four lanes in both directions.North ring section 41 kilometers by open to traffic in November 2007 and six leaf of high-speed, xihuan section 14 km from open to traffic in November 2008 and huai mound of high speed, the two paragraphs are two-way six lanes The completion of the highway-ring around hefei not only connects three counties and the hefei xinqiao airport High-speed rail station and binhu new area by the open area in the zone and also to connect the hefei - hefei, nanjing, hefei, wuhu, hefei - xuzhou - tongling hefei - anqing hefei - luan hefei - fuyang in multiple highway and several main countriesProvincial highway forms a relatively perfect outward highway main vein, shortening intercity space and improving logistics speed, which not only effectively improves the original highway traffic network of Hefei, but also plays a vital role in improving the traffic condition of Hefei and stimulating the economic development of Hefei.