As another backbone of the Chongqing Rail Transit system, the first stage of Line 9 has begun to be built. It is planned to open in 2020. With a total length of 32.3 kilometers, the Line will link core areas like Yuzhong, Jiangbei, and Yubei Districts, and transfer from Line 1, Line 3, Line 6 and the Loop Line. (CQNEWS)