The Yizhuang Line of the Beijing Subway (simplified Chinese: 北京地铁亦庄线; traditional Chinese: 北京地鐵亦莊線; pinyin: Běijīng Dìtiě Yìzhuāng Xiàn) is a rapid transit line that connects the Yizhuang Development Area with Beijing's subway network. The line is 23.23 km (14.43 mi) long with 14 stations, including six underground and eight elevated.^[4] It runs from Songjiazhuang in Fengtai District to Yizhuang Railway Station in Tongzhou District and passes through the southern Chaoyang and northern Daxing Districts.^[5] Total investment for the line was estimated at ¥1.2 billion.^[4] Construction began on December 8, 2007^[6] and the line opened on December 30, 2010.^[4] Yizhuang line's color is magenta.

Quick Facts Overview, Other name(s) ...

Yizhuang line
A Yizhuang line train at Rongjing Dongjie station
Overview
Other name(s)	M24[1]/L2[2] (planned name)
Status	Operational
Locale	Tongzhou, Daxing, Chaoyang, and Fengtai districts Beijing
Termini	Songjiazhuang Yizhuang railway station
Stations	14
Service
Type	Rapid transit
System	Beijing Subway
Operator(s)	Beijing Mass Transit Railway Operation Corp., Ltd
Depot(s)	Songjiazhuang, Taihu
Rolling stock	6-car Type B (DKZ32)
Daily ridership	173,500 (2014 Avg.) 221,200 (2014 Peak)[3]
History
Opened	30 December 2010; 13 years ago (2010-12-30)
Technical
Line length	23.23 km (14.43 mi)[4]
Character	Underground and elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	750 V DC third rail
Operating speed	80 km/h (50 mph) (maximum service speed)
Route map Legend Line 5 Tiantongyuanbei Line 10 inner – outer Songjiazhuang Line 5 and Line 10 Songjiazhuang yard Xiaocun Fengshuang railway Xiaohongmen Liangshui river Jiugong Liangshui river Yizhuangqiao Yizhuang Culture Park Wanyuan Jie Rongjing Dongjie Rongchang Dongjie Tongji Nanlu Jinghai Lu Tonghui river irrigate canal Ciqunan Ciqu Line 17 Jiahuihu – Future Science City North Yizhuang Railway Station (subway) Yizhuang railway station (China Railway) Beijing-Tianjin intercity railway (CRH station not yet opened) Taihu depot v t e

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On March 26, 2015, train YZ021 was testing when it derailed around Taihu. No passengers were on board and the driver faced leg injuries.^[8][9][10]

In 8 July 2022, an EIA document regarding Phase III construction of Beijing rail transport system (2022–2027) announced to reform the connection tracks between Yizhuang line, the line 5 and the line 10, so that trains of Yizhuang line can operate through trains with lines 5 and 10. It will require a maximum of 1.1 km (0.68 mi) new tracks near Songjiazhuang train depot, between Songjiazhuang stations of Yizhuang line and line 5, and Chengshousi station of line 10, it will also require to rebuild 0.5 km tracks for train storages within Songjiazhuang depot.^[11]