Core Insights - The construction of the southern section of the airport central urban expressway is progressing well, with approximately 50% of the overall project completed. This project will significantly enhance traffic efficiency for citizens traveling to Changsha Huanghua International Airport [1][6] Project Overview - The project is being invested in by the Airport Group and led by Hunan Construction Group, with a total construction investment of approximately 860 million yuan (about 8.6 billion yuan). The project has already achieved a production value of nearly 400 million yuan (about 4 billion yuan) [3] - The total length of the expressway is approximately 4.15 kilometers, consisting of both ground-level expressway and elevated bridge sections, with the elevated bridge spanning about 1.88 kilometers. The mainline expressway is designed for a speed of 60 kilometers per hour [3] - The construction employs patented technology from Tsinghua University, specifically the steel-concrete composite beam structure, which will enhance the load-bearing and durability performance of the bridges [3] Construction Progress - Nearly 300 workers are currently engaged in various construction tasks, including roadbed, rainwater and sewage pipelines, and bridge construction. Multiple processes are being advanced simultaneously to ensure project progress [6] - The project aims to achieve its target of opening to traffic by October 2026, with ongoing efforts to accelerate the construction of the upper structure of the bridges [6] Project Significance - This project is a crucial part of Changsha's expressway network, connecting major urban roads and improving transportation efficiency around Huanghua Airport. It includes various engineering components such as roads, bridges, drainage, lighting, landscaping, and traffic monitoring [7] - Upon completion, the project will significantly improve the transportation conditions around Huanghua Airport, enhance the connectivity of the regional road network, and play an important role in promoting regional economic development and optimizing citizens' travel experience [7]