# Bannan line

The Bannan or Blue line (code BL) is a metro line of Taipei Metro in Taipei, Taiwan, with a total of 23 stations serving the districts of Nangang, Xinyi, Daan, Zhongshan, Wanhua, Banqiao and Tucheng. The line's name is a portmanteau of Banqiao and Nangang.
The entire line runs underground. The excavation of tunnels using the cut-and-cover method resulted in large scale detouring of road traffic. Because of that, the line runs beneath existing roads and totals 28.3 km (17.6 mi).

## Overview

Service on this line is divided into a full-length service from Taipei Nangang Exhibition Center to Dingpu, as well as a shorter service from Kunyang to Far Eastern Hospital.
Due to Taipei City Hall being at the centre of the Taipei 101 New Year's festivities, intervals between trains can be reduced to a minimum of 135 seconds, transporting up to 39,000 passengers per hour. This results in an average of about 27 trains per hour on the line during peak hours.

## History

* 8 November 1990: The Nangang section begins construction.
* 30 December 1991: The Taipei Main Station western underground passageway opens.
* 24 December 1993: Nangang section construction at the intersection of Zhongxiao East Rd and Shaoxing Rd caves in, causes traffic jams.
* 30 October 1998: Construction is completed on the tunnel between Kunyang and Houshanpi.
* 17 September 2001: Typhoon Nari floods many stations, rendering them nonoperational.
* 29 November 2001: Taipei Main Station re-opens for service.
* 30 December 2003: The Nangang section eastern extension to Nangang begins construction.
* 17 November 2004: The Nangang section eastern extension to Taipei Nangang Exhibition Center begins construction.
* 21 May 2014: The 2014 Taipei Metro attack occurs between Longshan Temple and Jiangzicui when 21-year-old university student Cheng Chieh attacked passengers with a knife, leading to 4 deaths and 24 injuries.
* 28 September 2018: Half-height platform edge doors are installed in Tucheng, making all stations on this line and entire Taipei Metro system have some form of platform doors.

### Stations

Bannan Line stations timeline :
| Date | Description | Remarks |
| 24 December 1999 | Taipei City Hall to Longshan Temple | Revenue Service |
| 31 August 2000 | Longshan Temple to Xinpu | Revenue Service |
| 30 December 2000 | Kunyang to Taipei City Hall | Revenue Service |
| 27 May 2006 | Banqiao to Tucheng | Trial Service |
| 31 May 2006 | Xinpu to Yongning | Revenue Service |
| 16 May 2008 | Taipei Main Station to Nangang | Trial Service |
| 25 December 2008 | Taipei Main Station to Nangang | Revenue Service |
| 27 February 2011 | Nangang to Taipei Nangang Exhibition Center | Revenue Service |
| 6 July 2015 | Yongning to Dingpu | Revenue Service |

## Services

As of December 2017, the typical off-peak service is:
* 8 trains per hour (tph) between Far Eastern Hospital and Kunyang
* 7 tph between Dingpu and Taipei Nangang Exhibition Center

## Stations

| Services | Services | Services | Code | Station Name | Station Name | Travel time to previous station (s) | Stop time at station (s) | Date opened | Transfer | Districts | City |
| Normal | Normal | Night | Code | English | Chinese | Travel time to previous station (s) | Stop time at station (s) | Date opened | Transfer | Districts | City |
| ● | | | BL01 | Dingpu | 頂埔 | — | 25 | 2015-07-06 | Add→{{rail-interchange}} (constructing) | Tucheng | New Taipei |
| ● | | | BL02 | Yongning | 永寧 | 180 | 25 | 2006-05-31 | (Pitang) (constructing) | Tucheng | New Taipei |
| ● | | | BL03 | Tucheng | 土城 | 95 | 25 | 2006-05-31 | (constructing) | Tucheng | New Taipei |
| ● | | | BL04 | Haishan | 海山 | 106 | 25 | 2006-05-31 | N/A | Tucheng | New Taipei |
| ● | ● | ● | BL05 | Far Eastern Hospital | 亞東醫院 | 142 | 25 | 2006-05-31 | N/A | Banqiao | New Taipei |
| ● | ● | ● | BL06 | Fuzhong | 府中 | 92 | 25 | 2006-05-31 | N/A | Banqiao | New Taipei |
| ● | ● | ● | BL07 | Banqiao | 板橋 | 89 | 25 | 2006-05-31 | (out of station) | Banqiao | New Taipei |
| ● | ● | ● | BL08 | Xinpu | 新埔 | 102 | 25 | 2000-08-31 | (Xinpu Minsheng) | Banqiao | New Taipei |
| ● | ● | ● | BL09 | Jiangzicui | 江子翠 | 74 | 25 | 2000-08-31 | N/A | Banqiao | New Taipei |
| ● | ● | ● | BL10 | Longshan Temple | 龍山寺 | 190 | 28 | 1999-12-24 | (Wanhua) | Wanhua | Taipei |
| ● | ● | ● | BL11 | Ximen | 西門 | 103 | 30 | 1999-12-24 | | Zhongzheng, Wanhua | Taipei |
| ● | ● | ● | BL12 | Taipei Main Station | 台北車站 | 132 | 40 | 1999-12-24 | | Zhongzheng | Taipei |
| ● | ● | ● | BL13 | Shandao Temple | 善導寺 | 64 | 30 | 1999-12-24 | N/A | Zhongzheng | Taipei |
| ● | ● | ● | BL14 | Zhongxiao Xinsheng | 忠孝新生 | 76 | 28 | 1999-12-24 | | Daan, Zhongzheng | Taipei |
| ● | ● | ● | BL15 | Zhongxiao Fuxing | 忠孝復興 | 84 | 40 | 1999-12-24 | | Daan | Taipei |
| ● | ● | ● | BL16 | Zhongxiao Dunhua | 忠孝敦化 | 63 | 28 | 1999-12-24 | N/A | Daan | Taipei |
| ● | ● | ● | BL17 | Sun Yat-sen Memorial Hall | 國父紀念館 | 67 | 28 | 1999-12-24 | N/A | Xinyi, Daan | Taipei |
| ● | ● | ● | BL18 | Taipei City Hall | 市政府 | 72 | 28 | 1999-12-24 | N/A | Xinyi | Taipei |
| ● | ● | ● | BL19 | Yongchun | 永春 | 82 | 28 | 2000-12-30 | N/A | Xinyi | Taipei |
| ● | ● | ● | BL20 | Houshanpi | 後山埤 | 73 | 30 | 2000-12-30 | N/A | Nangang, Xinyi | Taipei |
| ● | ● | ● | BL21 | Kunyang | 昆陽 | 99 | 25 | 2000-12-30 | N/A | Nangang | Taipei |
| ● | ● | | BL22 | Nangang | 南港 | 105 | 25 | 2008-12-25 | | Nangang | Taipei |
| ● | ● | | BL23 | Taipei Nangang Exhibition Center | 南港展覽館 | 114 | — | 2011-02-27 | | Nangang | Taipei |