Zhengzhou Metro
Zhengzhou metro is the urban rail transit system of Zhengzhou city, covering Zhengzhou city, Xuchang city and Kaifeng city. Metro construction is divided into three stages, starting, developing and maturing. Its first line was put into trial operation on December 28, 2013, making Zhengzhou the 16th city in mainland China to open subways. As of September 2019, there are 5 operating metro lines, namely, Zhengzhou metro line 1, Zhengzhou metro line 2 (phase I), Zhengzhou metro line 5, Zhengzhou metro line 9 (Zhengzhou metro suburban line) and Zhengzhou metro line 14 (phase I). As of September 2019, there are 7 metro lines(sections) under construction, including line 2 phase II, line 3 phase I, line 4, line 6, line 10 and suburban line phase II.
