Ninggao metro carries Line S9 of Nanging-Gaochun 52,4km long route. Also known as Nninggao Intercity Railway, its design is according to the colour of the line, but as it goes over Shijiu Lake scenic area, it inspired us to design natural, soft and wavy shapes noticeable in seats and interior atmosphere above all. Linking Jiangning, Lishui and Gaochun Districts, brings Gaochun into the “One Hour Life Circle” and helps promote local economic development. A 12,7km bridge that also carries a motorway and railway carries Line S9 over Shijiu Lake. CRRC Nanjing Puzhen has supplied a fleet of 12 three-car Type B trainsets, which will be lengthened to four cars in the future. The rolling stock has a maximum speed of 120 km/h and draws power at 1,5kV DC.