According to Chengdu local treasure, Chengdu Metro Phase III 10 line was officially completed and opened to traffic in June 2023. Chengdu, referred to as Rongcheng and Jincheng for short, is a prefecture-level city, provincial capital, sub-provincial city, megacity, national central city and food capital under the jurisdiction of Sichuan Province. Located in the southwest of China, the west of Sichuan Basin and the hinterland of Chengdu Plain.