Zhengzhou Metro (ZZS)
Opened 2013, China’s 20th metro. 13-line network serving 230 stations. See Zhengzhou network map.Work on the east-west Line 1 began in 2009, and the line opened on December 28 2013 from Xiliuhu to Zhengzhou Sports Center (26·3 km, 20 stations), with extensions opening at each end on January 12 2017: ...
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