The Fangshan Line of the Beijing Subway (Chinese: 北京地铁房山线; pinyin: běijīng dìtiě fángshān xiàn) is a rapid transit line in western Beijing that runs from Yancundong in Fangshan District north and east to Dongguantounan in Fengtai District. The line is 31.8 km (19.8 mi). It is mainly elevated, including 10 elevated stations and 6 underground stations.^[2] It allows residents of Beijing's western suburbs to connect to the rest of the Beijing Subway network. Fangshan line's color is orange.

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

Fangshan line
A Fangshan line train leaving Suzhuang station
Overview
Other name(s)	M25 North (planned name) Line 25 North
Status	Operational
Locale	Fengtai and Fangshan districts Beijing
Termini	Yancundong Dongguantounan
Stations	16
Service
Type	Rapid transit
System	Beijing Subway
Operator(s)	Beijing Mass Transit Railway Operation Corporation Limited
Depot(s)	Yancun
Rolling stock	6-car Type B (BD24)
Daily ridership	102,600 (2014 Avg.) 132,100 (2014 Peak)[1]
History
Opened	30 December 2010; 13 years ago (2010-12-30)
Technical
Line length	31.8 km (19.8 mi)
Character	Underground and elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	750 V DC third rail
Route map Legend Dongguantounan Line 16 Wanpingcheng – Bei'anhe Shoujingmao Line 10 inner – outer Zaoyu ditch Huaxiang Dongqiao Ma'cao river Baipenyao National Library connects Line 9 Guogongzhuang Line 9 connects line 9 depot Dabaotai Several railways near Fengtai West railway station crossing Yongding River Daotian Changyang Jingguang HSR Xiaoqing river Libafang Yaba river Guangyangcheng Huangliang railway Liangxiang Univ. Town North Liangxiang Univ. Town Liangxiang Univ. Town West Jingguang railway Liangxiang Nanguan Ciwei river Suzhuang Yancun depot planned through trains via Yanfang line Yancundong Yanfang line Yanshan v t e

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It was opened on December 30, 2010. An expansion of the line came on December 30, 2017, with the opening of the one-station western extension to Yancundong. The line was extended further north from Guogongzhuang station to the southwest corner of the Third Ring Road. The extension is 5.25 km (3.26 mi) in length and it is fully underground.^[3][4] The northern extension opened on December 31, 2020.^[5]

The Fangshan line starts at Yancundong, just west of the East Yancun Bridge, where it interchanges with the Yanfang line. Previously, it started at Suzhuang which is located at the intersection of Changhong West Road and Suzhuang Street in the Liangxiang area of Fangshan District. The line makes four stops in Liangxiang including at the Fangshan Campus of the Beijing Institute of Technology. The line then heads north to the towns of Guangyang and Changyang. After crossing the Yongding River, the Fangshan Line enters Fengtai District where the line makes two more stops, at Dabaotai near the Beijing World Park, and at Guogongzhuang, also the southern terminus of Line 9. The line then makes four stops further northeast connecting with Line 10 at Shoujingmao and connecting with Line 16 at Dongguantounan.

Through service

In 2021, it was announced that there will be some through service between Line 9 and the Fangshan line. The operator is retrofitting the signal systems of both lines to achieve this.^[7][8] Through service started on 18 January 2023.^[9]

Construction of the Fangshan Line was originally set to begin in 2012^[11] but was moved up to April 1, 2009, to use stimulus funding provided by the government to counter the Financial Crisis of 2007-08.^[12] The names of Phase 1 stations was announced on March 25, 2010, as a 7-day publicity.^[13]

On December 30, 2010, the line began operating from Suzhuang to Dabaotai, but was not connected to any other line of the subway system. One year later, on December 31, 2011, the Dabaotai to Guogongzhuang section opened, linking the Fangshan Line with Line 9 and the rest of the subway network.

On December 30, 2017, the line was extended one stop westward to Yancun Dong (E).

On December 31, 2020, the line was extended north by 4 stations.^[5]