The western section of the Dazhou-Chengdu Railway (the Da-Cheng Railway) was open to traffic after the completion of capacity expansion reconstruction, which marked the official commencement of running of passenger trains between Suining and Chengdu. As a consequence, it is faster and more convenient to take trains between Chengdu and Chongqing, for the journey will be shortened from 3 and half hours to 2 hours and 42 minutes.
Extending from Sanhui town, Dazhou city in the east to Chengdu city in the west, the Da-Cheng Railway is one important section of the Shanghai-Wuhan-Chengdu grand passageway in the program of “Eight Verticals and Eight Horizontals” railway network in China. The Da-Cheng Railway was first built in 1997. Restricted by the surrounding terrain at that time, the railway used to have many curves along and a design speed of only 80 kilometers.
Capacity expansion reconstruction of the Da-Cheng Railway started officially in June 2005. 119.71 kilometers of double-track electrified railways, with a design speed of 200 kilometers per hour, was built along the western section of the railway from Suining to Chengdu. And a second track was built and the existing track was reconstructed along the eastern section from Sanhui town to Suining, totaling 186.851 kilometers, with the design speed of 160 kilometers per hour. The capacity expansion reconstruction results in a three-track railway of the section from Suining to Chengdu and a double-track railway of the section from Sanhui town to Suining.
After capacity expansion reconstruction, the Da-Cheng Railway will be straighter with fewer curves and will have an electrified and closed operation through the whole line. It is estimated that the capacity expansion reconstruction along the railway will be completed in its entirety and open to traffic in this month.