Huanzhou Metro

The Huanzhou Metro (Chinese: 環州地鐵; pinyin: Huánzhōu dìtiě, commonly abbrievated as 環鐵) is a major rapid transit system in Tseng, located in Huanzhou, Nankou. With a daily ridership of around 1.0 million, it is the second-busiest metro system in Tseng, only trailing the Tseng City Metro.

History
Plans for a metro system in the Huanzhou area were discussed as far back as the 1970s. However, the city government did not start raising the issue until Tseng City successfully opened the Dahuan Line in 1986, when the government undertook a feasibility study on a Huanzhou metro system. A proposal for the first phase of the metro was drawn up and sent to the executive government, which was accepted on September 9, 1992. The proposal included 2 metro lines and 18 stations, all of which were underground.

Construction began in January 1993.