Core Points - The construction of the Kezhu Expressway and the Su-Tai Expressway (Phase II) is progressing rapidly, with both projects expected to be completed and operational by 2025, thereby closing the last two gaps in the Hangzhou Second Ring Road [2][4] - The Hangzhou Second Ring Road, once completed, will significantly enhance traffic flow and economic connectivity within the Hangzhou metropolitan area, benefiting various local industries [5][6] Group 1: Project Progress - The main construction of the Kezhu Expressway includes 23 bridges and 7 tunnels, with asphalt paving currently underway [2] - The Su-Tai Expressway (Phase II) has also reached a critical stage, with the completion of the main line and the commencement of construction for the service area [2][4] Group 2: Economic and Traffic Impact - The completion of the Hangzhou Second Ring Road will alleviate congestion on the existing Hangzhou Ring Expressway, which has been experiencing high traffic volumes and frequent bottlenecks [5] - The new ring road will connect key urban nodes, enhancing economic ties and facilitating quicker access to major industrial areas, such as the pearl industry in Zhuji and the textile industry in Keqiao [5][6] Group 3: Future Developments - The Hangzhou Central Ring Road is also under construction, with plans for completion by 2027, further improving regional connectivity and supporting the city's goal of becoming an international transportation hub [6][7] - The overall transportation plan aims to achieve one-hour commuting within the Hangzhou metropolitan area and two-hour access to major cities in the Yangtze River Delta by 2027 [7]