 High-speed train service between Chengdu and Chongqing run on the Dazhou−Chengdu and Suining−Chongqing Lines instead of the longer and older Chengdu–Chongqing Railway.The Dacheng Railway was proposed in 1958 by Railway Minister Teng Daiyuan but was halted after two years of planning due to economic difficulties caused by the Great Leap Forward.The project was reconsidered in 1965 but was set aside in favor of building the Xiangfan-Chongqing Railway first.