Passengers wait for the train at Longtansi Station of metro Line 8 in Chengdu, Southwest China's Sichuan Province on December 19, 2024. On that day, the first phase of Line 27 and the second phase of Line 8 were officially opened for operation. The operating mileage of the Chengdu's city rail network has exceeded 670 kilometers with 16 lines. Photo: cnsphoto