Taichung line (mountain line)
Overview
Native name	臺中線 (山線)
Owner	Taiwan Railway Corporation
Termini	Zhunan Changhua, Zhuifen (branch)
Stations	17 (16 on main, 1 on branch)
Service
Type	Heavy rail
Operator(s)	Taiwan Railway Corporation
History
Opened	20 February 1908
Technical
Line length	85.5 km (53.1 mi)
Number of tracks	2
Track gauge	3 ft 6 in (1,067 mm)
Electrification	25 kV/60 Hz Catenary
Operating speed	150 km/h (93 mph)
Route map Legend km Western Trunk line 125.4 Zhunan Western Trunk line 130.7 Zaoqiao 136.6 Fengfu 140.6 Miaoli 147.2 Nanshi 151.4 Tongluo 158.8 Sanyi 169.7 Tai'an 172.3 Houli 179.1 Fengyuan 181.6 Lilin 184.1 Tanzi 186.0 Toujiacuo 187.7 Songzhu 189.2 Taiyuan 191.2 Jingwu 193.3 Taichung 195.3 Wuquan 197.5 Daqing 200.5 Wuri Taiwan High Speed Rail 201.3 Xinwuri 203.8 Chenggong Western Trunk line Zhuifen 210.9 Changhua Western Trunk line Distances shown are from Keelung via West Coast line

The Taichung line (Chinese: 臺中線 or 台中線; pinyin: Táizhōng Xiàn; Pe̍h-ōe-jī: Tâi-tiong Soàⁿ), also known as the Mountain line (Chinese: 山線; pinyin: Shān Xiàn; Pe̍h-ōe-jī: Soaⁿ-sòaⁿ), is a line of the Taiwan Railway. It is one of two parallel lines in Central Taiwan, passing the inland area and Downtown Taichung. It has a total length of 85.5 km (53.1 mi), all of which is double track.^[1]

The Taichung Line was first completed in 1908. After the Coast Line between Zhunan and Changhua was finished in 1922, the original line was renamed the Taichung Line. In 1998, the construction to expand to two tracks (double tracks) was completed. Long tunnels were built to reduce the grade of the line. Sanyi Tunnel is one of the longest railway tunnels in Taiwan. The opening of the new segment of the line relegated the previous segment of the line to become the Old Mountain Line.

The section between Fengyuan and Daqing was rebuilt as an elevated line in 2016. Five new stations were added in 2018: Lilin, Toujiacuo, Songzhu, Jingwu, and Wuquan.^[2]

Station Name				Transfers	Location
English	Chinese	Taiwanese	Hakka
Zhunan	竹南	Tek-lâm	Chuk-nàm	→ West Coast line	Zhunan	Miaoli County
Zaoqiao	造橋	Chō-kiô	Chho-khiâu		Zaoqiao
Fengfu	豐富	Hong-hù	Fûng-fu	Miaoli	Houlong
Miaoli	苗栗	Biâu-le̍k	Mèu-li̍t		Miaoli
Nanshi	南勢	Lâm-sì	Nàm-sṳ
Tongluo	銅鑼	Tâng-lô	Thùng-lò		Tongluo
Sanyi	三義	Sam-gī	Sâm-ngi	→ Former Mountain line (limited services)	Sanyi
Tai'an	泰安	Thài-an	Thai-ôn		Houli	Taichung
Houli	后里	Āu-lí	Heu-lî	→ Former Mountain line (limited services)
Fengyuan	豐原	Hong-goân	Fûng-ngièn		Fengyuan
Lilin	栗林	Lek-lîm	Li̍t-lìm		Tanzi
Tanzi	潭子	Thâm-chú	Thâm-chṳ́
Toujiacuo	頭家厝	Thâu-ke-chhù	Thèu-kâ-chhṳ̀
Songzhu	松竹	Siông-tek	Chhiùng-chuk	104 Songzhu	Beitun
Taiyuan	太原	Thài-goân	Thai-ngièn
Jingwu	精武	Cheng-bú	Chîn-vú		East
Taichung	臺中	Tâi-tiong	Thòi-chûng		Central
Wuquan	五權	Ngō͘-khoân	Ńg-khièn		South
Daqing	大慶	Tāi-khèng	Thai-khin	115 Daqing
Wuri	烏日	O͘-ji̍t	Vû-ngit	118 Wuri (out-of-station)	Wuri
Xinwuri	新烏日	Sin O͘-ji̍t	Sîn Vû-ngit	Taichung 119 HSR Taichung station
Chenggong	成功	Sêng-kong	Sṳ̀n-kûng	→ Chengzhui line
Jinma	金馬	Kim-má	Kîm-mâ	124 Jinma (planned)	Changhua	Changhua County
Changhua	彰化	Chiong-hoà	Chông-fa	→ West Coast line

Notes:

• Tai'an Station: Earliest elevated station of TRA.