Number on Jul.20-26 602.3 km China's mileage of urban rail transport totals 602.3 km, including 22 subway and light rail routes within 10 cities, either in full or trial operation. In 12 Chinese cities, 36 rail transit routes are under construction, with Beijing, Shanghai and Guangzhou having the most. There are 15 cities waiting approval for further urban rail transit plans, namely, Beijing, Shanghai, Tianjin, Chongqing, Guangzhou, Shenzhen, Nanjing, Hangzhou, Wuhan, Chengdu, Harbin, Changchun, Shenyang, Xi'an and Suzhou. In 10 years, these 15 cities will build a total of 1,700 km of rail routes with a total investment of 620 billion yuan.