京哈高速改扩建工程通车 畅通东北发展“动脉”

Core Viewpoint - The completion of the G1 Jingha Expressway expansion from Suizhong to Panjin marks the first long-distance ten-lane highway in China, significantly enhancing transportation efficiency and supporting economic development in Northeast China [1][2]. Group 1: Economic Impact - The Jingha Expressway handles over 80% of the freight volume entering and exiting the Shanhaiguan area, with traffic volume increasing by approximately 10% annually, from an average of 20,000 vehicles per day to 120,000 vehicles [2]. - The expansion is expected to improve logistics efficiency by an average of 30% for enterprises along the route, with daily traffic projected to exceed 150,000 vehicles post-expansion [7]. - Companies like China National Petroleum Corporation's Jinzhou Petrochemical are experiencing reduced transportation times, with shipments now taking 15 hours instead of 20, leading to a projected 10% increase in sales of chemical products to North and East China [5]. Group 2: Construction Challenges - The expansion project, which began in 2022 with a total investment of 31 billion yuan and a length of 238 kilometers, faced significant construction challenges that required innovative solutions [3]. - Techniques such as differential pushing and real-time monitoring were employed to successfully construct critical infrastructure, including the 1,561.3-meter Liuhe River Bridge [3]. Group 3: Infrastructure Modernization - The newly expanded highway features modern amenities such as smooth road surfaces, clear intelligent traffic signs, and well-organized green isolation belts, transforming the old highway into a modern transportation corridor [4].