As an important engine of regional economic development and a link of economic and cultural exchange between regions, traffic highway has always been the focus of regional construction and development. With the rapid development of industrialization and urbanization, the scale of traffic highway construction has been increasing. Xiaobian specially summarizes the dynamics of a large number of major engineering projects in Guangxi, Hunan, Yunnan and other places for your reference. The expansion project of Yiyang-Changde Expressway starts from Bijiashan Interchange of Changyi Expressway expansion line and connects Erguang Expressway (East Ring Road of Changde). The total length of the route is 93.5 kilometers, which is constructed by two-way six-lane expressway with a design speed of 120 kilometers per hour and a total investment of 18.56 billion yuan. It is expected to be completed and opened to traffic in 2024. This project is located in the core area of the "Changyi Changzhang" economic corridor, which is an important link connecting Jiangxi, Sichuan and Guizhou provinces in Hunan Province, and is of great significance for strengthening economic and trade exchanges between western and eastern, central and inland provinces. The route of G59 Hohhot-Beihai Expressway from Xinhua to Xinning in Hunan Province starts near Qingjiawu in Xinhua County, connects with Xinxian and Guanxin Expressways, crosses Shanghai-Kunming Expressway and connects with Dongxin Expressway. The main line is 192.3 kilometers long, and is constructed by four-lane expressway with a design speed of 100 kilometers per hour. The total investment of the project is about 27.01 billion yuan. It is expected to be completed and opened to traffic in 2024. After the completion of the project, it will connect the Hubei Expressway, a national high-speed artery running through six provinces in the north and south, which will play an important role in accelerating the regional development of Wuling Mountain area and promoting the connection between Hunan and ASEAN. Huize-Qiaojia Expressway (referred to as "Huiqiao Expressway") is one of the key projects of "Interconnection" project of expressway network in Yunnan Province, a key component of inter-provincial expressway network connecting Yunnan, Sichuan and Guizhou, and an inter-county economic trunk line of Huize County and Qiaojia County. Project construction is of great significance to accelerate Yunnan's integration into the Yangtze River Economic Belt and promote regional economic and social development. The investment of Huiqiao Expressway project is estimated to be 13.1 billion yuan, and the total length of the route is 69.75 kilometers, including 57.240 kilometers in Huize County and 11.621 kilometers in Qiaojia County. The whole line adopts the standard construction of two-way four-lane expressway with a design speed of 80 km/h and a subgrade width of 25.5 meters. There are 13 tunnels/37535m and 58 bridges/17705m in the project, with a total length of 55.24km and a bridge-tunnel ratio of 79.2%. The project adopts BOT+EPC+ equity cooperation mode, and the construction is undertaken by the project company composed of Yunnan Communications Investment and Construction Group Co., Ltd. and Qujing Communications Construction and Investment Group Co., Ltd.. The expressway from Mengyuan to Guanlei Port starts from Mengyuan Hub, connects with Xiaomo Expressway, which is the international channel of Kunming, passes through Jinghong and Kunming in the north, reaches Mohan, the national first-class port in the southeast, ends at Guanlei Village, connects with the national waterway port of Guanlei, connects the international channel of Lancang-Mekong waterway through Guanlei Port, and reaches the hinterland of Indochina and Southeast Asian countries. It is another important link for Xishuangbanna to build an integrated water-land transport. With a total length of 30.32 kilometers, the main line adopts the standard construction of two-way four-lane expressway, with one parking area, one maintenance work area, one main line toll station, one monitoring sub-center and one tunnel management office. Liuzhou-Jinxiu Highway (Tongmu-Jinxiu Section) is a component of "Union 4" in the layout plan of "1 ring, 12 horizontal, 13 vertical and 25 joint" in Guangxi Expressway Network Planning (2018 ~ 2030). The starting point of the project route is located at the junction of Tongmu Town and Toupai Town, connecting with Mengshan-Xiangzhou section of Heba Expressway, and connecting with the planned Liuzhou-Jinxiu Expressway (Liuzhou-Tongmu section). The route passes through Sandu River, Sanjiao Township, Shuanghekou, Gualiu, Liumen and Liubi Village, and the end point is located near Liuren Village on the west side of Jinxiu County. The main line is 19.25 kilometers long, and the Jinxiu connecting line is constructed simultaneously for 0.94 kilometers, with an estimated total investment of about 3.847 billion yuan. The standard of two-way four-lane expressway is adopted, with a design speed of 100 km/h and a roadbed width of 26 meters. There are 2 interchanges, such as Siping and Sanjiao. At present, the feasibility study and related bidding announcement have been issued for Huizhou Bay Expressway project in Guangdong Province, and the overall construction period is 36 months. The project site is located in Tangquan Interchange of Guanghui Expressway, and the route runs from north to south. It passes through Xiaojinkou, Shuikou, Ma 'an, Liangjing, Baihua and Xiayong in Huizhou, and ends at Petrochemical Avenue in Daya Bay in the near future. It is planned to extend to Renping Peninsula in the long term. The total length of the line is about 90 kilometers. It is constructed according to the national highway construction standards, and adopts two-way six-lane and eight-lane design with a design speed of 100 kilometers per hour and a subgrade width of 42. It is estimated that the total investment is about 30.6 billion yuan, and the main construction contents include newly-built subgrade, pavement, branch hub, greening and other expressway related supporting projects. According to Shaanxi Communications Holding Group, the PPP project of Danfeng-Shanyang section of Danning Expressway, which was won by Shaanxi Communications Control Group, has been ready for various preliminary procedures, and is expected to officially start construction in the near future. The PPP project of Danfeng-Shanyang section of Danning Expressway is the first investment project that has won the bid since the establishment of Shaanxi Jiaokong Group, with a bid amount of 5.984 billion yuan. The Danfeng-Shanyang section of Danning Expressway starts in the east of Zhulinguan Town, Danfeng County, and is connected with Shanghai-Shaanxi Expressway through Tumen, Danfeng County, Yinhua, Zhongcun and Luoyu, Shanyang County to the west, and ends in the south of Gaobadian. The total length of the project route is 38.83 kilometers, which is constructed according to the standard of four-lane expressway. There are 6 interchanges and 1 service area. The design speed is 100 km/h. The planned construction period is 3 years and the operation period is 30 years.
