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).
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.[1] This results in an average of about 27 trains per hour on the line during peak hours.
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 fruit 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.
Wikimedia Commons has media related to Taipei Metro Blue Line.
^"Taipei City promises faster New Year MRT". The China Post. 23 December 2010. Archived from the original on 16 April 2017. Retrieved 23 December 2010.
^"MRT Nangang extension to start operations". Focus Taiwan News Channel. 24 February 2011. Archived from the original on 8 August 2012. Retrieved 24 February 2011.
^ a b"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). Archived from the original on 7 October 2019. Retrieved 4 October 2019.