Line 7, Beijing Subway

Line 7, Beijing Subway
Line 7 七号线
Overview
Type	Rapid transit
System	Beijing Subway
Stations	19
Daily ridership	182,800 (2014 Avg.)[1] 442,000 (2016 Peak)[2]
Operation
Operator(s)	Beijing Mass Transit Railway Operation Corp., Ltd
Technical
Line length	23.7 km (14.7 mi)
Track gauge	1,435 mm (4 ft 8 ^1⁄2 in)
Route map Lines 7, 9 [{{fullurl:{{{1}}}|action=edit}}    ] [{{fullurl:{{{1}}}|action=edit}}    ] Beijing West [{{fullurl:{{{1}}}|action=edit}}    ] Wanzi Lines 16, 7 [{{fullurl:{{{1}}}|action=edit}}    ] Daguanying Line 16 opens 2017 [{{fullurl:{{{1}}}|action=edit}}    ] Guang'anmennei Lines 4, 7 [{{fullurl:{{{1}}}|action=edit}}    ] [{{fullurl:{{{1}}}|action=edit}}    ] Caishikou [{{fullurl:{{{1}}}|action=edit}}    ] Hufangqiao Lines 7, 8 [{{fullurl:{{{1}}}|action=edit}}    ] Zhushikou Line 8 opens 2017 [{{fullurl:{{{1}}}|action=edit}}    ] Qiaowan Lines 5, 7 [{{fullurl:{{{1}}}|action=edit}}    ] [{{fullurl:{{{1}}}|action=edit}}    ] Ciqikou [{{fullurl:{{{1}}}|action=edit}}    ] Guangqumennei [{{fullurl:{{{1}}}|action=edit}}    ] Guangqumenwai Lines 7, 10 [{{fullurl:{{{1}}}|action=edit}}    ] Shuangjing Lines 14, 7 [{{fullurl:{{{1}}}|action=edit}}    ] [{{fullurl:{{{1}}}|action=edit}}    ] Jiulongshan [{{fullurl:{{{1}}}|action=edit}}    ] Dajiaoting [{{fullurl:{{{1}}}|action=edit}}    ] Baiziwan [{{fullurl:{{{1}}}|action=edit}}    ] Huagong [{{fullurl:{{{1}}}|action=edit}}    ] Nanlouzizhuang [{{fullurl:{{{1}}}|action=edit}}    ] Happy Valley Scenic Area Fatou [{{fullurl:{{{1}}}|action=edit}}    ] Shuanghe [{{fullurl:{{{1}}}|action=edit}}    ] Jiaohuachang

Line 7 of the Beijing Subway (Chinese: 北京地铁7号线; pinyin: běijīng dìtiě qīhàoxiàn) is a rapid transit rail line in Beijing. It runs parallel and to the south of Line 1 and Batong Line, from the Beijing West Railway Station in Xuanwu District to Jiaohuachang (Coking Plant) in Tongzhou District. Construction began in January 2010.^[3] It started test runs in September 2014 with full operation beginning on December 28, 2014.^[4] Like Line 6, Line 7 provides additional relief to the overcapacity Line 1 adding another east-west trunk line to the Beijing Subway network.^[5]

Route

Line 7 to scale

Line 7 currently has 19 operational stations and is planned to have a total of 23 stations. The stations have longer platforms that accommodate 8-train cars, longer than existing Beijing subway station platforms which can only accommodate 6-train cars.^[6] The line was originally slated to have 17 stations, from the Beijing West Station to Baiziwan.^[7] A revised plan approved by the Planning Committee of the Beijing Municipal government called for 22 stations over 23.9 km, ending in Jiaohuachang (Coking Plant) further east.^[8] A 23rd station was added at the eastern 4th Ring Road to accommodate nearby residents.^[9]

Planning

Line 6 was originally conceived in 1973 as a "pan-handle" shaped route incorporating the central sections of today's Lines 6 and 7.^[10] In 1983 Line 6 was dissolved into two distinct lines. The section under Guang'anmen, Luomashi, Zhushikou and Guangqumen Streets and the "handle" branch to Fengtai became Line 7. The rest of the loop with a new south eastern extension to what was at the time the Beijing Jiaohuachang (Coking Plant) complex became Line 6.^[11] Line 7 was later revised westward to terminate at a new major railway station called Beijing West Railway Station and Line 9 taking over servicing Fengtai.^[12] When Beijing West Station started construction in the early 1990s space was set aside for a subway station allowing Cross-platform interchange for the future Lines 7 and 9.^[13] By 1993 the planned section of Line 6 heading to Coking Plant complex was revised as an eastern extension of Line 7, forming the alignment built today.^[14]

In 2013, planners revised the design of Line 7 from using the standard 6 car trains to 8 car trains after performing a detailed transport study of the Fatou area. Fatou's population projections were upgraded from 100,000 to 220,000 people and be a significant employment hub in the future. Planners decided that 6 cars trains would have insufficient capacity for the new demand projections. Line 7 was originally planned to use 1500V DC overhead lines to power the longer subway trains. However, the already completed platforms at Beijing West Station assumed the line would use a 750V DC 3rd rail system like Beijing's legacy subway lines and built with vertical clearance for such. The line ultimately used a 1500V DC 3rd rail system as a compromise.^[5]

Future

Construction will start on the western extension of line 7 coking plant station to a new Universal Studios theme park in 2015 with a 2019 opening date. Th extension will run primarily through Chaoyang and Tongzhou Districts. The project will add seven new stations and approximately 17 km of new line, of which 2.3 km is elevated.^[15][16]

Stations

List of stations from west to east.^[17]

Station name English	Station name Hanzi	Transfer	Bus transfer	Location
Beijing West Railway Station	北京西站	9	3 9 21 40 52 53 65 67 89 96 109 122 309 349 373 374 387 410 414 616 661 662 663 673 694 741 820 821 840 843 890 901快 941 941快 982 997 特2 特6 特13 特14 特17 特18 特19 夜5 夜8 夜14 夜15 夜22 夜23 夜36 运通102 专3	Fengtai
Wanzi	湾子		6 38 45 46 53 57 76 85 89 109 122 133 390 410 414 477 691 特7 夜7 夜22	Xicheng
Daguanying	达官营		6 38 42 46 53 57 76 80 85 109 122 133 390 410 477 691 特7 夜7 夜22
Guang'anmennei	广安门内		5 6 19 38 40 57 76 78 109 133 381 676 717 741 835 835快 836 838 917快 特5 夜7
Caishikou	菜市口	4	5 6 48 57 70 83 102 105 109 381 603 特5 特14 夜4 夜7 夜10 夜18 专13
Hufangqiao	虎坊桥		5 6 7 14 15 23 34 48 57 66 70 102 105 603 特5 夜7 夜10 夜18
Zhushikou	珠市口		5 17 20 23 48 57 59 66 69 71 93 120 622 观光1 特11 夜2 夜7 夜10 夜17 夜18	Xicheng / Dongcheng
Qiaowan	桥湾		23 57 夜7 夜10	Dongcheng
Ciqikou	磁器口	5	23 39 41 43 57 60 106 116 525 623 684 685 特7 夜7 夜10 夜24 夜28
Guangqumennei	广渠门内		8 12 23 57 夜7
Guangqumenwai	广渠门外		23 57 637 夜7
Shuangjing	双井	10		Chaoyang
Jiulongshan	九龙山	14	11 23 30 35 54 348 486 513 541 605 621 677 973 985 夜7 夜25 专5 专87	Chaoyang
Dajiaoting	大郊亭		11 23 31 35 439 455 513 541 581 657 740 810快 865 特9 夜34
Baiziwan	百子湾		11 23 31 439 455 541 581
Huagong	化工
Nanlouzizhuang	南楼梓庄		30 34 41 561 657
Happy Valley Scenic Area	欢乐谷景区		31 41 专166
Fatou	垡头
Shuanghe	双合		348 457 561 637 677 夜19
Jiaohuachang	焦化厂		348 457 637 638 677 夜19

Shuangjing Station and Fatou Station are not in operation.

History

• January 8, 2008: Plans for Line 7 reported in the media. Construction scheduled to begin by the end of the year.^[7]
• Oct. 30, 2008: Line 7 route plan with 23 stations receive regulatory approval. Construction still scheduled to begin by end of the year.^[18]
• July 19, 2009: Construction on Line 7 announced to begin in late August 2009.^[19]
• Nov. 6, 2009: Commencement of Line 7 construction deferred to 2010.^[3]
• Jan. 19, 2010: Construction reportedly begun along Guangqu Road near the eastern most section of the line.^[9]
• Dec. 28, 2014: Operations of Line 7 begin, except for Shuangjing Station and Fatou Station.^[4]

Notes

1. "晚高峰加小圈车 地铁6号线满载率降12%". 首都之窗. 2014-08-22. Retrieved 2014-09-14.
2. "北京地铁日客流创纪录 首破1200万大关". 搜狐. 2016-03-27. Retrieved 2016-03-26.
3. (Chinese) 北京地铁“南北大动脉”2010底前打通 Nov. 6, 2009
4. http://baike.baidu.com/view/1720195.htm
5. http://www.bjjtw.gov.cn/xxgk/dtxx/201411/t20141119_97206.html
6. (Chinese) “4条地铁线将装屏蔽门” ‘’法制晚报’’ Jan. 20, 2010
7. "Beijing Subway Line 7 and Line 14 will begin construction this year" People's Daily Online Jan. 8, 2008
8. (Chinese) "轨道交通7号线规划方案通过专家评审" 轨道协调组 Aug. 7, 2008
9. (Chinese) “北京地铁7号线悄然开工 全长23.7公里工期4年” ‘’法制晚报’’ Jan. 19, 2010
10. 北京市地铁运营有限公司 (December 2011). 北京地铁发展史. 北京: 北京出版社. pp. 162–164.
11. 北京市地铁运营有限公司 (December 2011). 北京地铁发展史. 北京: 北京出版社. pp. 222–225.
12. 施仲衡主编 (1997). 地下铁道设计与施工. 西安: 陕西科学技术出版社. pp. 44–45.
13. 荆永波. "地铁北京西站改造大规模病害治理技术". 铁道建筑技术 (7): 61–65.
14. 北京市地铁运营有限公司 (December 2011). 北京地铁发展史. 北京: 北京出版社. p. 355.
15. http://bj.people.com.cn/n/2015/0825/c82840-26113822.html
16. http://www.cee.cn/7/2/10593/
17. (Chinese)"Line 7 Information Page" BII accessed Oct. 31, 2008
18. (Chinese) "北京地铁7号线与14号线方案获批" 京华时报 Oct. 30, 2008
19. (Chinese) Guo, Kun. "北京地铁7号线下个月开工" 京华时报 July 19, 2009