Tseng City Metro System

The Tseng City Metro System, commonly known as the Tseng City Metro (TCM; 曾中市捷運) is a metro system serving Tseng City, the capital of the Tseng Republic. It was the first metro system in Tseng, the TCM was opened with the Dahuan line in 1986. Now, it has grown into 10 lines with 118 stations. The city hopes to have two new lines and 140 stations by 2030.

History
A city meeting was held on January 12, 1969 to discuss a potential metro rail system. Because of the Wanxia Miracle (a period where Tseng became a modern country), Tseng City's population was rapidly growing, and almost all the city's roads were clogged with vehicles. However, city councilor John Jin-hai, one of the people in the meeting, proposed the expansion of the A1 highway and addition of a ring road and more highways instead, and that choice was chosen.

It wasn't until the 1970s that the idea of a metro system sprung up again. It was the exact same problem as 1969, with extreme traffic jams on all the highways of the capital, especially during rush hours. So on June 3, 1977, the Tseng City Government formed a team called the Metro Project, which was to research and design a metro system for Tseng City. The team, which consisted of NIAST graduates and Westerners (mostly British and American) eventually proposed a line that ran from Pudian to Tseng City Harbour via Sun Tzu Station. The line was approved on January 25, 1980, and construction started in August 1981 with a budget of T¥5.2 billion (US$12.8 billion).

Initial network
Construction on the original section of the Dahuan Line was finished on July 10, 1986, and the line officially opened on December 20. The Dahuan Line was a driverless, underground, medium-capacity line, with 10 stations from Pudian Station to Tseng City Harbour.

1987 Waihu station accident
"Main article: 1987 Waihu station accident"On January 8, 1987, a train crash occurred at Waihu Station. A subway going northbound hit the rear of another subway that was going southbound. The main reason of the accident was the conductor, Matthew Sui, who hated his "boring" job and wanted "some action". Sui was declared mentally insane and was executed in 1998. As of 2021, this accident remains the most deadliest train accident in Tsengian history, with 12 people killed and 105 injured, as it happened during rush hour

2008 Tseng City Metro train derailment
On September 5, 2008, a train just leaving Sanmin Park station on the Central Line derailed. Two people died and 28 were injured.