The route is long and contains eighteen stations. It stretchs from Songzhu Road in Beitun District of Taichung along Beitun Road, Wenxin Road, and Wenxin South Road to the High Speed Rail Station in the Wuri District. It was expected to cost NT$53.491 billion, and was built by the Taipei City Department of Rapid Transit Systems. The planned total cost for the project is NT$51.39 billion (including land acquisition costs), which is split between the local and central government. The Green line began trial operation on 16 November 2020 and was supposed to start formal operations on 19 December 2020. The trial run was suspended on 19 November 2020 when a railway coupler snapped in half. The trial resumed on March 25, 2021 and the line officially opened on April 25, 2021. Fares Fares for the Taichung Metro start at NT$20 and are capped at NT$50. The fare increases by NT$5 for every 2 kilometers traveled. Future Expansion Blue line The BRT Blue line began its operation in 2014, as a BRT system running between Providence University and the Taichung Railway Station. It ran along the busy Taiwan Boulevard, on a designated lane made specifically for BRT. Bus stations were built on the divider between the fast and slow lanes on the road. It was the first articulated bus system in Taiwan. The service ended on 8 July 2015 due to the new policy announced by Mayor Lin Chia-lung on 30 March 2015. The designated BRT Lane was changed to an ordinary bus lane, allowing other buses that operate primarily on Taiwan Boulevard to use the lane. The articulated buses that originally ran the route became known as bus route 300. Currently it is a designated bus lane for multiple routes. A MRT system running the same route is currently being planned. Orange line A fourth line was planned in 2009 to connect the city with Taichung Airport. However, after multiple proposals to build a MRT and BRT line were rejected by the Ministry of Transportation and Communications, the city government turned to an LRT system. While the system was still being planned, they switched to a MRT system again. In 2019, MRT project substituted for LRT project. In 2021, LRT project switched back to the original MRT project again. Kenan Aiqin Bridge (科湳愛琴橋), which crosses over National Freeway 1 and Provincial Highway 74, has a space on the center