Bus. There is a through train from Pidu District to Chongzhou, but there are only two trains every day. Chengdu, referred to as "Rong" for short, is also called Rongcheng and Jincheng. Located in the middle of Sichuan Province, Chengdu is the capital and sub-provincial city of Sichuan Province, one of the first national historical and cultural cities in China, and an important central city in Southwest China.