Planned extensions

There are two planned extensions to the line. The first, known as the Dakeng Extension, branches east from Jiushe station and runs along Songzhu Road to the base of Dakeng. The second, known as the Changhua Extension, runs west past Taichung HSR Station and crosses the Dadu River to Changhua. The extensions add two and five more stations respectively, and will cost an additional $25 billion NTD.^[5][6]

Planning and construction

A metro system in Taichung was discussed since 1990, which would connect various suburbs including Caotun, Zhongxing New Village, and others. The plan was dropped due to high cost and low projected ridership. A new proposal was renewed and approved in 2004, but construction did not begin immediately because of costs exceeding estimates and disagreements over where stations would be.^[8][9][10]

In 2010, preliminary work began by relocating trees on the median and rerouting the utilities that run under those roads.^[11] Progress was plagued by various delays, including conflicts between the city and electrical contractors, problems with land acquisition, and the bankruptcy of a major utilities contractor. Because of the delays, mayor Jason Hu and his administration were heavily criticized by rivaling political parties.^[12][13]

Formal construction began in May 2013.^[14][15] Two separate incidents occurred during construction. On 19 August 2014, a crane malfunctioned and broke off its arm, falling on top of a restaurant. No injuries were reported.^[16][17] Then, on 10 April 2015, a crane's arm snapped while lifting a 209-ton I-beam, causing the beam to fall and crushing a car underneath. Workers atop the beam were also thrown off. The driver of the car and three workers lost their lives, while four other works sustained heavy injuries.^[18][19] Construction was halted for three months following the incident.^[20] On 30 June 2016, construction of the line was completed, and testing began soon after.^[21][22]

Initially, the stations numbers were numbered sequentially from G1 to G20, with the "G" representing green. However, since G8 is pronounced similar to chi-bai, which is considered profane in Hokkien, the "G" prefix was changed to "1", which represents how the Green line is the first line completed.^[23] The station's English names were initially written in a mix of Tongyong Pinyin and Hanyu Pinyin, and the lack of standardization drew criticism.^[24] On 24 August 2020, the Taichung City Council decided to use Hanyu Pinyin for all stations except for Sihwei Elementary School.^[25]

Operations

Beginning on 16 November 2020, the Green line was opened to the public for testing and was free to ride until its formal opening ceremony planned for on 19 December. On the first day, 70,977 passengers used the line.^[26] However, on 21 November, the couplers on one of the trains snapped in half; the line was closed to the public the next day.^[3] Then, on 27 November, another coupler was found to be broken.^[27]

Trial runs resumed on 25 March 2021. A opening ceremony was held on 25 April 2021.^[28]

On 10 May 2023, a construction crane fell from a construction site of Highwealth Construction Corp onto a moving Taichung Metro Green Line train south of Feng-le Park metro station, Taichung, Taiwan, killing 1 and injuring 8 passengers onboard.

Wuri-Wenxin-Beitun Line

More information Code, Station Name ...

Code	Station Name		Connections	Location
	English	Chinese		District	City
103a	Beitun Main	北屯總站		Beitun	Taichung
103	Jiushe	舊社	Dakeng Extension (planned)
104	Songzhu	松竹	Taichung Line
105	Sihwei Elementary School (Erfenpu)	四維國小 (二分埔)
106	Wenxin Chongde	文心崇德	R  Red Line (planned)
107	Wenxin Zhongqing (Tianjin Shopping Distrist)	文心中清 (天津商圈)	O  Orange Line (planned)	North
108	Wenhua Senior High School	文華高中		Xitun
109	Wenxin Yinghua	文心櫻花
110	Taichung City Hall	市政府	B  Blue Line (planned)
111	Shui-an Temple	水安宮		Nantun
112	Wenxin Forest Park	文心森林公園
113	Nantun (Wenxin Wuquan W.)	南屯 (文心五權西)	R  Red Line (planned)
114	Feng-le Park	豐樂公園
115	Daqing (Chung Shan Medical University)	大慶 (中山醫大)	Taichung Line	South
116	Jiuzhangli	九張犁		Wuri
117	Jiude	九德
118	Wuri	烏日	Taichung Line (out of station transfer)
119	HSR Taichung station	高鐵臺中站	Taichung Line (via Xinwuri railway station) Taichung HSR station Changhua Extension (planned)

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Dakeng Extension

Changhua Extension

More information Code, Station Name ...

Code	Station Name		Transfers	Location
	English	Chinese		District	City
120	Chenggongling	成功嶺		Wuri	Taichung
121	Xialaoxu	下勞胥
122	Duchuantou	渡船頭		Changhua City	Changhua County
123	Kulingjiao	苦苓腳
124	Jinma	金馬	Taichung Line (via Jinma Station, planned)

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