辽宁台黑高速公路全线通车，实现高质量“县县通高速”

Core Points - The Taihei Expressway has officially opened, achieving Liaoning's goal of high-quality "county-to-county" expressway connectivity [1] - The project enhances transportation links between the northwestern Liaoning region and the Liaoning coastal economic belt, contributing to the construction of a comprehensive transportation network [1] Project Overview - The Taihei Expressway spans 33.9 kilometers, built to a dual four-lane highway standard with a design speed of 120 km/h and a roadbed width of 27 meters [1] - The project includes one hub interchange, two general interchanges, three toll stations, and one maintenance work area [1] Construction Timeline - The project took only 22 months from commencement to completion, showcasing a new speed in expressway construction in Liaoning [2] - Key construction techniques included the use of impact compaction and hydraulic tamping to ensure safety and quality, allowing for the project to be completed a year ahead of schedule [2] Broader Impact - In the past month, four expressways in Liaoning have been completed a year ahead of schedule, totaling over 600 kilometers [2] - Since the start of the 14th Five-Year Plan, Liaoning has implemented 14 expressway projects, covering a total of 1,385 kilometers, with significant growth in transportation infrastructure investment [2] - The provincial transportation authority plans to continue focusing on major projects to support high-quality development and improve public transportation [2]