The Tamsui–Xinyi line or Red line (code R) is a line of the Taipei Metro. It includes a total of 30 stations serving the Tamsui, Beitou, Shilin, Datong, Zhongshan, Zhongzheng, Daan, and Xinyi districts. At 29 km, it is the longest line of Taipei Metro.
For 15 years, trains ran between Tamsui and Xindian via the southern part of the current Green line, making it the longest-serving former service of the system, followed closely by a service from Beitou to Nanshijiao. With the completion of the current line sections, both services ended. Trains from the Tamsui run directly onto the Xinyi section.
The Tamsui section runs mostly along the former Tamsui railway line. There most of the tracks and stations have been renovated, except in the Zhongzheng district, where a new tunnel was constructed due to lack of surface right-of-way.
The Red line is a high-capacity metro system. Routes south of Yuanshan Station are underground; routes between Yuanshan Station and Beitou Station are elevated; routes between Beitou Station and Hongshulin Station are at-grade; and Tamsui Station is elevated.
Over the years, the Tamsui Line used different types of rolling stock. From the start, the line used C301 cars. In 1997, the C321 cars were introduced. In 2007-2013, the newest cars, the C371 and C381 cars were used, replacing some of the C301 and all C321 cars.
As of December 2017, the typical off-peak service is:
|Services||Code||Station Name||Transfer||Distance (km)||Location|
(Veterans General Hospital)
|●||●||R14||Yuanshan||圓山||10.0 (11.6 Jiantan)||Datong
|●||●||R13||Minquan West Road||民權西路||(O11)||9.1|
(Mackay Memorial Hospital)
|●||●||R11||Zhongshan||中山||(G14)||7.9 (8.5 Shanglian)|
|●||●||R10||Taipei Main Station||台北車站|| (BL12)
300 m: Taoyuan Airport MRT (A1 Taipei Main)
West Coast (100)
|●||●||R09||National Taiwan University Hospital||台大醫院||6.6|
|●||●||R08||Chiang Kai-shek Memorial Hall
|●||R03||Taipei 101/World Trade Center||台北101/世貿||0.7||Xinyi|
|｜||R01||Guangci/Fengtian Temple（Zhongpo） [December 2022]||廣慈/奉天宮（中坡）||--|