|Other name(s)||Red line|
|Type||High-capacity metro system|
|Services||Tamsui line, Xinbeitou branch line, Xinyi line|
|Operator(s)||Taipei Rapid Transit Corporation (TRTC)|
|Rolling stock||Kawasaki C301 and C381 stock|
|Line length||29.3 km (18.2 mi) (including Xinbeitou)|
|Track gauge||1,435 mm (4 ft 8 1⁄2 in)|
|Operating speed||80 km/h (50 mph)|
|Alternative Chinese name|
The Tamsui–Xinyi or Red line (code R) is a metro line in Taipei operated by Taipei Metro, named after the districts it connects: Tamsui and Xinyi. It includes a total of 30 stations serving Tamsui, Beitou, Shilin, Datong, Zhongshan, Zhongzheng, Daan, and Xinyi districts. At 29 km, it is the longest line of Taipei Metro.
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 are underground; routes between Yuanshan and Beitou are elevated; routes between Beitou and Hongshulin are ground level; and Tamsui is elevated.
For 15 years, trains operated between Tamsui and Xindian via the southern part of the current Songshan–Xindian line, making it the longest-serving former service of the system, followed closely by a service from Beitou to Xindian. With the completion of the current line sections, both services ended. Trains from the Tamsui run directly onto the Xinyi section.
- July 1988: Tamsui Line begins construction.
- 28 March 1997: Tamsui Line begins service from Tamsui to Zhongshan.
- 25 December 1997: The section from Zhongshan to Taipei main station begins service.
- 24 December 1998: The section from Taipei main station to Chiang Kai-shek Memorial Hall begins service.
- 1 November 2002: Ground broken on Xinyi Line construction.
- 12 February 2010: Corridor approved by the Executive Yuan for the Xinyi line eastern extension.
- 15 July 2010: The last section of shield tunneling is completed, marking the completion of tunnel construction.
- 15 October 2013: The line completed its preliminary inspection.
- 24 November 2013: The section from Chiang Kai-shek Memorial Hall Station to Xiangshan MRT station opened and began revenue service.
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:
|Code||Image||English name||Chinese name||Districts||Travel time to previous station (s)||Stop time at station (s)||Date opened||Notes|
|R03||Taipei 101–World Trade Center||台北101·世貿||Xinyi||93||30||2013-11-24|
|R05||Daan||大安||Daan||81||30||2013-11-24||Change for Wenhu line; some services terminate here|
|R07||Dongmen||東門||Zhongzheng, Da'an||65||35||2013-11-24||Change for Zhonghe–Xinlu line|
|R08||CKS Memorial Hall||中正紀念堂||Zhongzheng||165||35||1998-12-24||Change for Songshan–Xindian line; terminus of planned Wanda–Zhonghe–Shulin line|
|R10||Taipei Main Station||台北車站||Zhongzheng||63||45||1997-12-25||Change for Bannan line, TRA, THSR and Taoyuan Airport MRT|
|R11||Zhongshan||中山||Datong, Zhongshan||65||30||1997-03-28||Change for Songshan–Xindian line|
|R13||Minquan West Road||民權西路||Datong, Zhongshan||57||35||1997-03-28||Change for Zhonghe–Xinlu line|
|R22||Beitou||北投||Beitou||91||25||1997-03-28||Change for services to Xinbeitou; some services terminate here|
|R22A||Xinbeitou||新北投||Beitou||157||n/a||1997-03-28||Branch line station|
|R27||Hongshulin||紅樹林||Tamsui||136||25||1997-03-28||Change for Danhai light rail|
|Code||English name||Chinese name||Districts||Date of opening||Notes|
|R01||Guangci–Fengtian Temple||廣慈·奉天宮||Xinyi||2022||Connects to Xiangshan station; under construction|
- Current form opened on 24 November 2013
- to Beitou
- Sandy Huang (2002-11-02). "Ground broken on construction of Hsinyi MRT line". Taipei Times. Retrieved 2009-08-15.
- "捷運信義線隧道全線貫通 達成重大工程里程碑". Department of Rapid Transit Systems. 2010-08-01. Retrieved 2010-09-06.
- Department of Rapid Transit Systems, Taipei City Government (2013-10-15). "Preliminary Inspection of the Xinyi Line Completed". Department of Rapid Transit Systems, Taipei City Government. Retrieved 2013-11-10.
- "Mayor: Xinyi Line to Provide Services November 24". Department of Information Technology, Taipei City Government. 2013-11-19. Retrieved 2013-11-24.
- "臺北捷運系統相鄰兩站間之行駛時間、停靠站時間 | 政府資料開放平臺". data.gov.tw (in Chinese). Retrieved 4 October 2019.