million Euro). Technologies used include Trainguard MT, Vicos OC 501, Sicas ECC and Az S 350 U axle counting system. Gallery Network Map See also List of Nanjing Metro stations Nanjing trams List of metro systems Notes Discrepancies between these figures are explained by interchange stations. If interchange stations are counted once for each line they serve, there would be 114 urban line stations, 50 S-line stations, and 164 total stations. References External links Nanjing Metro – official website Nanjing at UrbanRail.net Siemens Mobility projects Railway lines opened in 2005 2005 establishments in China Projects established in 1984