Core Insights - The construction of the key project, the Tongde Tunnel, for the Panyan Expressway has commenced, which will serve as a crucial link between the Panxi Economic Zone and the Northwest Ecological Demonstration Zone in Sichuan [3][4] - The Panyan Expressway, with a total length of approximately 131.3 kilometers, is designed to significantly reduce travel time between Panzhihua and Yanyuan, impacting over 4 million people, which accounts for 65% of the population in Panzhihua and Liangshan [4] Group 1 - The Tongde Tunnel is a separated long tunnel with a left line length of 14,450 meters and a right line length of 14,520 meters, facing geological challenges such as rock bursts and high geothermal conditions [3] - The construction team has implemented a GNSS monitoring system to continuously track the tunnel's position and detect potential geological hazards [3] Group 2 - Since entering the substantial construction phase in September, the Panyan Expressway has achieved key milestones in seven challenging engineering projects, including the Gesala Tunnel and the Jinsha River Bridge [4] - The expressway is part of the Sichuan Provincial Highway Network Layout Plan (2022-2035) and is a vital segment of national highways G4216 and G7611 [4]

Core Insights - The construction of the Xixiang Expressway, which connects Xichang to Shangri-La, is making significant progress with the completion of over 1000 meters of tunneling in both the Jinhe Tunnel and Hanpoling Tunnel, indicating a strong advancement towards timely project completion [1][2] Group 1: Project Significance - The Xixiang Expressway is crucial for the economic development of Liangshan, serving as a vital transportation route that connects key tourist attractions and supports the region's infrastructure goals [2] - The expressway is part of a broader initiative to enhance transportation networks in Liangshan, with a total of seven expressway projects currently under construction, exceeding 1200 kilometers in total length [2] Group 2: Investment and Infrastructure Development - Liangshan has invested over 150 billion yuan in expressway construction since the start of the 14th Five-Year Plan, with plans to complete over 41 billion yuan in road and waterway investments this year, leading the province [2] - The recently signed investment agreement for the Panyan Expressway, estimated at approximately 34.96 billion yuan, highlights ongoing infrastructure development efforts, with construction expected to begin in the third quarter of 2025 [3]