Taipei Metro is a metro system in Taipei and New Taipei, Taiwan. It consists of 131 stations (119 stations if transfer stations are counted once,) with 6 main routes and 2 branch lines, operating on 152.9 kilometres (95 mi) of revenue track. The Taipei Metro was the first metro system in Taiwan. The Taoyuan Metro's Airport Express link opened in March 2017 mainly to connect the Taipei Taoyuan Airport and the main station.