Line 2 is 36.39 kilometres (22.61 mi) in length, including a 34.8-kilometre (21.6-mile)-long underground section.[4] The line began operating on 26 March 2021.
Line 3 (Phase 1) is 21.592 kilometres (13.417 miles) long. It is completely underground. The line began operating on 28 December 2019.[5]
Rolling stock
Lines 1, 2, and 3 use Type B rolling stock. Lines 2 and 3 have six-car trains, whereas Line 1 has four-car trains with provision for an increase to six-car trains in the future.
Lines 4, 6, 7, 8 and 9 will use high capacity Type A rolling stock.[6]
History
Planning of the system began in the early 2000s but was delayed due to 2008 world economic crisis. After years of preparation, construction started at an official ceremony on 29 December 2013. Line 1 was opened on 1 April 2019.[1]
The first phase of construction was adopted by National Development and Reform Commission and included three lines (1, 2, and 3) with 47 stations. The first phase has a total length of 96.5 kilometres (60.0 mi): 72.2 kilometres (44.9 mi) underground, 23.8 kilometres (14.8 mi) elevated, and one-half kilometre (0.3 miles) transitional. It is expected to cost up to ¥48.9 bn.
The fare system is based on existing smart card technology.[7]
Phase 2 was approved by the National Development and Reform Commission on 30 October 2020. Phase 2 consists of 159.6 km of new subway and is proposed to start construction in 2020.[8]
