云南又有两条高速公路建成通车

Core Viewpoint - The completion of the Daba Expressway and the Ruili to Nongdao Expressway significantly enhances the transportation network in Yunnan, providing strong support for economic and social development in the region [1][3][6] Group 1: Daba Expressway - The Daba Expressway's Laoying to Banchang section is 16.045 km long, with a bridge-tunnel ratio of 71.5%, and was constructed with a total investment of 4.254 billion yuan [3] - The project utilized innovative construction techniques to minimize environmental impact, including automatic wastewater purification and a rainwater-sewage separation collection model [3] - The completion of this expressway improves the regional highway network and enhances the status of Baoshan as a comprehensive transportation hub, which is crucial for local tourism and economic development [3] Group 2: Ruili to Nongdao Expressway - The Ruili to Nongdao Expressway has a total length of 30.383 km, with 9.8 km being newly constructed and 20.583 km being expanded from existing connections, with an estimated investment of 3.148 billion yuan [6] - This expressway serves as an important part of the provincial border transportation framework, improving connectivity between Ruili urban areas, border towns, and port functional zones [6] - The expressway facilitates rural revitalization and development in ethnic regions, while also providing logistical support for China-Myanmar trade through the Leiyun Port, enhancing the strategic position of Dehong Prefecture [6]