Group 1 - The Chengdu Metro has switched three under-construction lines to "acceleration mode" after the Spring Festival holiday, with construction teams working diligently to meet annual construction goals [1] - The Chengde Line has resumed work with approximately 2,000 personnel on-site, and all 29 construction points have restarted, with safety measures strictly enforced [2] - The Chengmei Line has also resumed work, with over 1,000 workers on-site, and the project has transitioned to the station post-engineering and track laying phase, with significant progress made [5] Group 2 - The Chengdu Metro Line 18 Phase III has seen the completion of the main structure for four stations, with shield tunneling achieving 98.3% of the total project volume, and efforts are focused on completing the final 400 meters of tunneling [7] - The construction teams have prepared materials in advance to ensure a smooth resumption of work, with over 1,000 builders actively engaged in the construction process [5][7]