There are currently more than a dozen subway lines in Guangzhou. There are lines 1, 2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 18 and 22, etc. At present, the subway lines have spread all over Guangzhou, including Conghua, Zengcheng, Panyu, Huadu and other remote areas, even connecting Foshan.