# Line 10 (Beijing Subway)

Line 10 of the Beijing Subway (Chinese: 北京地铁10号线; pinyin: běijīng dìtiě shíhào xiàn) is the second loop line in Beijing's rapid transit network as well as the second longest and most widely used line. The line is 57.024 km (35.433 mi) in length, and runs entirely underground through Haidian, Chaoyang and Fengtai Districts, either directly underneath or just beyond the 3rd Ring Road. The Line 10 loop is situated between 2 and 6 kilometres (1.243 and 3.728 mi) outside the Line 2 loop, and intersects with every subways line through the city centre, with 24 transfer stations and 45 stations in all. The line's color is capri.
Upon completion in May 2013, it held the record as the world's longest rapid transit loop line, an acolade it held until March 2023. It remains one of the longest entirely underground subway lines in the world, requiring 104 minutes to complete one full journey in either direction.

## History

| Segment | Commencement | Length | Station(s) | Name |
| Bagou — Jingsong | 19 July 2008 | 24.680 km (15.335 mi) | 22 | Phase 1 |
| Xiju — Bagou | 30 December 2012 | 13.843 km (8.602 mi) | 9 | Phase 2 (initial section) |
| Jingsong — Capital Univ. of Economics & Business | 30 December 2012 | 15.932 km (9.900 mi) | 11 | Phase 2 (initial section) |
| Capital Univ. of Economics & Business — Xiju | 5 May 2013 | 3.420 km (2.125 mi) | 2 | Phase 2 (final section) |
| Jiaomendong | 5 May 2013 | Infill station | 1 | |

### Planning

The Beijing Subway network was originally conceived to have only one loop line. The booming economy and explosive population growth of Beijing put huge demand on Line 2, surpassing its designed capacity. In 2001 and 2002, the China Academy of Urban Planning and Design proposed two "L-shaped" lines named Line 10 and 11. Together they would form a second loop around Beijing and relieve pressure on line 2.

### Phase I

On December 27, 2003, in preparation for the 2008 Summer Olympics in Beijing, Phase 1 of Line 10 started construction. On July 19, 2008, Phase I of Line 10 entered operation ahead of the opening of the Olympic Games. It was 24.68 km (15.34 mi) in length and had 22 stations. Phase I consisted of the northern and eastern sides of Line 10's rectangular loop from Bagou to Jingsong forming an inverted L-shaped line.
* Liangmaqiao Station
* Beitucheng Station
* Zhichunli Station
* Jiandemen Station

### Phase II

Construction on Phase II began on December 28, 2007. which meant that the original plan for Line 11 was not incorporated into the final network design and was instead absorbed into Line 10. Line 10 formed the second full loop around Beijing. In 2010, the Ministry of Railways proposed that Fengtai Railway Station was to be renovated and expanded to become a bigger intercity rail terminal for Beijing, with access to the Beijing-Guangzhou high-speed railway. The rationale was to ease intercity traffic pressure on Beijing West railway station. Due to the need to reorganize the stations on Line 10 to better serve the new rail terminal, work stopped on 2 stations, namely Mengjiacun (孟家村) and Niwa (泥洼). The planning department proposed that the original Mengjiacun and Niwa subway stations be merged into the new Fengtai railway station, known as the "three stations into one" program. Local residents, after realizing their travel to a subway station would be greatly lengthened, quickly opposed the plan. Planners reconsidered and moved Niwa station 300 m (984 ft) north to its current position and Mengjiacun station 100 m (328 ft) north to be renamed as Fengtai Railway Station. The original station shells were demolished and new stations built in their respective new locations. Niwa station started reconstruction in February 2012, while Fengtai railway station started on April 11, 2012. This made the late 2012 opening date for that section of Line 10 highly unlikely and was postponed to the next year. On December 30, 2012, the first section of Phase II, consisting of the southern and western sides of the loop opened. With the opening of Phase I and Phase II, Line 10 became a "C" shape.
The near completion of Line 10 led to rapid growth of Line 10's ridership. At the same time, some traffic from Line 1 was diverted to the parallel and newly opened Line 6, allowing Line 10 to overtake Line 1 as Beijing's busiest subway line. The Beijing Subway started operating express trains that ran non-stop between Songjiazhuang to Jinsong to alleviate traffic in the southeastern section of Line 10. These express trains stopped operating after the completion of the loop.
The loop was fully enclosed on May 5, 2013 with the opening of Fengtai and Niwa stations, as well as the infill Jiaomen East. Initially, Line 10 services consisted of a "full-loop" service that make the journey through all 45 stations in 104 minutes, and "partial-loop" trains that run from Chedaogou in the north-west to Songjiazhuang in the south-east before turning back. With the delivery of more rolling stock, "partial-loop" trains were removed and all trains are now serving the full loop at a headway of 2 minutes and 15 seconds. By 2014, the completed loop carried on average 1.69 million passengers per day. By 2019, large sections of Line 10 operated above 100% capacity, particularly the eastern and northern sections. Beijing Subway has responded by increasing the frequency of trains to every two minutes and removing some seats on trains to increase capacity.
* Concourse of Panjiayuan station
* Concourse of Fengtai Railway Station (subway station)
* Ceiling of Gongzhufen station, Line 10
* Concourse of Dahongmen station, Line 10

## Operation

From Bagou near Wanliu Park in Haidian District, Line 10 runs straight east, between the northern 3rd and 4th Ring Roads. At Xitucheng, the line meets the northern section of the Yuan dynasty earthen city wall, called tucheng. Jiandemen and Anzhenmen stations are named after former gates in the wall. At Beitucheng, Line 8 (Phase 1) extends off Line 10 and provides access to the Beijing Olympic Green. Farther east, Line 10 turns south after the Sanyuanqiao and follows the eastern 3rd Ring Road straight south to Jingsong in Chaoyang District. The Bagou-Jingsong section constituted Phase I of Line 10, which first opened in July 2008, and connects the university district in Haidian with the embassy district and Beijing CBD. A trip from Bagou to Jingsong takes about 40 minutes. The full loop takes about 104 minutes.

### Fare

Starting fare of RMB(¥) 3 that increases according to the distance fare scheme introduced in December 2014.
Regular subway users can use a Yikatong card, which offers even cheaper journeys, as well as mobile phone apps, which deploy payment via a QR code.

### Hours of Operation

The first train on the inner (clockwise) loop departs from Xiju towards Shoujingmao at 5:20 am. The first train on the outer (counter-clockwise) loop departs from Shoujingmao towards Xiju at 6:12 am. The last inner loop train leaves Xiju for Bagou at 11:29 pm. The last outer loop train leaves Shoujingmao for Chedaogou at 11:06 pm. For the official timetable, see.

### Safety

There are subway public security bureaus (police stations) located in the Bagou, Beitucheng and Liangmaqiao stations. Emergencies can be reported by calling 110 or 64011327.

## Stations

Some trains terminate at stations marked '*'.
| Station Name | Station Name | Connections | Nearby Bus Stops | Travel Time | Distance km | Distance km | Location |
| English | Chinese | Connections | Nearby Bus Stops | Travel Time | Distance km | Distance km | Location |
| — ↑ loop line - towards Huoqiying ↑ — | — ↑ loop line - towards Huoqiying ↑ — | — ↑ loop line - towards Huoqiying ↑ — | — ↑ loop line - towards Huoqiying ↑ — | — ↑ loop line - towards Huoqiying ↑ — | -1.495 | -1.495 | |
| Bagou | 巴沟* | Xijiao | 74 302 307 361 386 424 528 534 539 613 614 630 644 664 快速直达专线26 通医专线6 夜9 | 0:00 | 0.000 | 0.000 | Haidian |
| Suzhou Jie | 苏州街 | 16 | 26 302 307 361 374 386 424 450 528 613 630 634 644 671 688 快速直达专线26 快速直达专线37 快速直达专线126 快速直达专线127 快速直达专线177 快速直达专线200 快速直达专线204 夜9 | 0:02 | 1.110 | 1.110 | Haidian |
| Haidian Huangzhuang | 海淀黄庄 | 4 | 302 305 307 320 332 355 365 386 584 614 630 634 653 671 681 快速直达专线26 快速直达专线37 快速直达专线126 快速直达专线127 快速直达专线139 快速直达专线147 通医专线6 夜8 夜9 | 0:04 | 0.950 | 2.060 | Haidian |
| Zhichun Li | 知春里 | | 323 386 549 579 630 634 653 671 夜9 | 0:06 | 0.975 | 3.035 | Haidian |
| Zhichun Lu | 知春路 | 13 | 311 319 386 579 601 630 653 671 快速直达专线93 夜9 专168 | 0:08 | 1.058 | 4.093 | Haidian |
| Xitucheng | 西土城 | Changping | 21 94 375 386 478 579 601 603 653 658 671 686 693 快速直达专线93 夜9 夜14 | 0:10 | 1.101 | 5.194 | Haidian |
| Mudanyuan | 牡丹园 | 19 | 16 21 22 47 123 135 331 345快 425 508 510 579 601 606 618 620 645 653 658 夜4 夜9 | 0:12 | 1.330 | 6.524 | Haidian |
| Jiande Men | 健德门 | | 21 55 143 315 344 345 510 601 618 620 625 653 658 695 夜2 夜9 夜38 | 0:14 | 0.973 | 7.497 | Haidian / Chaoyang |
| Beitucheng | 北土城 | 8 | 5 21 81 82 92 113 142 380 409 515 607 620 653 877区 889区 夜6 夜9 专8 | 0:16 | 1.100 | 8.597 | Chaoyang |
| Anzhenmen | 安贞门 | | 108 117 124 142 301 380 409 515 653 944 BRT3(快速公交3) BRT3区(快速公交3区) 夜9 夜34 专8 | 0:18 | 1.020 | 9.617 | Chaoyang |
| Huixin Xijie Nankou | 惠新西街南口 | 5 | 95 125 361 430 464 515 921 944 夜26 | 0:21 | 0.982 | 10.599 | Chaoyang |
| Shaoyaoju | 芍药居 | 13 | 119 515 547 567 696 942快 快速直达专线41 快速直达专线65 快速直达专线172 专22 | 0:24 | 1.712 | 12.311 | Chaoyang |
| Taiyanggong | 太阳宫 | 17 | 130 132 467 515 567 939 专212 | 0:26 | 1.003 | 13.314 | Chaoyang |
| Sanyuan Qiao | 三元桥 | 12  Capital Airport | 18 95 104 132 300 300快 302 359 368 379 401 403 404 419 536 604 641 671 847 850 850快 852 915 916 916快 918 935 935快 939 980快 快速直达专线72 快速直达专线141 快速直达专线169 快速直达专线195 快速直达专线196 夜18 夜30 | 0:28 | 1.759 | 15.073 | Chaoyang |
| Liangma Qiao | 亮马桥 | | 4 95 402 403 405 413 416 418 419 499 516 536 672 675 687 985 快速直达专线141 快速直达专线195 快速直达专线196 夜30 夜32 专114 | 0:31 | 1.506 | 16.579 | Chaoyang |
| Agricultural Exhibition Center | 农业展览馆 | | 4 95 135 300 300快 302 368 402 405 416 499 516 671 672 675 687 690 夜30 夜32 专114 专142 | 0:33 | 0.914 | 17.493 | Chaoyang |
| Tuanjiehu | 团结湖 | 3 | 4 43 95 113 115 117 302 405 406 431 499 650 672 675 687 690 快速直达专线78 快速直达专线195 快速直达专线196 夜3 夜30 夜34 专5 专114 专142 | 0:35 | 0.853 | 18.346 | Chaoyang |
| Hujialou | 呼家楼 | 6 | 75 113 115 126 140 350 368 405 412 650 671 687 BRT2(快速公交2) 快速直达专线78 夜6 夜30 夜34 专5 专114 | 0:37 | 1.149 | 19.495 | Chaoyang |
| Jintai Xizhao | 金台夕照 | | 9 98 101 113 118 350 368 405 488 615 650 671 687 BRT2(快速公交2) 夜13 夜30 夜34 专114 | 0:39 | 0.734 | 20.229 | Chaoyang |
| Guomao | 国贸 | 1 | 1 9 11 28 57 58 72 98 113 348 368 382 388 402 405 488 561 650 666 667 668 669 687 804 805快 806 807 809 814 817 818 818快 848 930 938快 快速直达专线5 快速直达专线9 快速直达专线20 快速直达专线61 快速直达专线69 快速直达专线169 夜1 夜27 夜30 专10 | 0:41 | 0.835 | 21.064 | Chaoyang |
| Shuangjing | 双井 | 7 | 23 28 54 57 72 98 300 300快 312 348 368 402 637 669 687 805快 848 938快 快速直达专线85 快速直达专线192 通医专线4 夜7 夜29 夜30 专10 专87 专165 | 0:43 | 1.759 | 22.823 | Chaoyang |
| Jingsong | 劲松 | | 8 28 29 35 41 52 54 72 91 98 352 368 402 457 535 637 638 687 通医专线4 夜19 夜30 | 0:45 | 1.006 | 23.829 | Chaoyang |
| Panjia Yuan | 潘家园 | | 28 34 63 300 300快 368 378 535 638 687 805快 848 938快 快速直达专线91 夜30 | 0:47 | 1.021 | 24.850 | Chaoyang |
| Shilihe | 十里河 | 14  17 | 28 53 300 300快 352 368 378 439 440 513 638 649 680 687 846 848 973 975 976 985 986 995 快速直达专线91 快速直达专线217 夜30 专19 | 0:49 | 1.097 | 25.947 | Chaoyang |
| Fenzhong Si | 分钟寺 | | 352 | 0:52 | 1.804 | 27.751 | Fengtai |
| Chengshou Si | 成寿寺* | | 25 93 128 665 680 821 985 990 快速直达专线182 夜23 专189 专196 | 0:54 | 1.058 | 28.809 | Chaoyang |
| Songjiazhuang | 宋家庄* | 5  Yizhuang | 2 39 84 139 141 366 511 524 526 555 576 581 990 快速直达专线116 快速直达专线211 夜28 专62 专189 | 0:57 | 1.677 | 30.486 | Fengtai |
| Shiliuzhuang | 石榴庄 | | 17 120 141 324 820 829 夜28 专76 专130 | 0:59 | 1.269 | 31.755 | Fengtai |
| Dahong Men | 大红门 | | 54 343 622 687 827 BRT1(快速公交1) 快速直达专线16 专13 专34 专76 专163 | 1:01 | 1.244 | 32.999 | Fengtai |
| Jiaomendong | 角门东 | | 14 54 102 343 501 511 687 957 专13 专34 专76 专145 专176 | 1:03 | 1.130 | 34.129 | Fengtai |
| Jiaomenxi | 角门西 | 4 | 30 51 72 144 474 501 529 646 954 快速直达专线160 夜18 专145 专209 | 1:06 | 1.254 | 35.383 | Fengtai |
| Caoqiao | 草桥 | 19  Daxing Airport | 381 410 423 434 456 483 497 529 676 679 夜22 专179 专209 | 1:09 | 1.688 | 37.071 | Fengtai |
| Jijiamiao | 纪家庙 | | | 1:11 | 1.547 | 38.618 | Fengtai |
| Capital Univ. of Economics & Business | 首经贸 | Fangshan | 67 351 692 912 通医专线7 专180 | 1:14 | 1.143 | 39.761 | Fengtai |
| Fengtai railway station | 丰台站 | 16 FTP | 专4 专149 | 1:17 | 1.717 | 41.478 | Fengtai |
| Niwa | 泥洼 | | 335 349 395 459 678 845 | 1:19 | 0.954 | 42.432 | Fengtai |
| Xiju | 西局 | 14 | 83 323 458 480 483 531 830 958 969 973 快速直达专线45 快速直达专线97 夜36 | 1:21 | 0.749 | 43.181 | Fengtai |
| Liuli Qiao | 六里桥 | 9 | 57 133 477 554 568 603 838 941 941快 982 专3 | 1:24 | 1.584 | 44.765 | Fengtai |
| Lianhua Qiao | 莲花桥 | | 62 89 134 323 374 603 890 977 快速直达专线68 夜30 专3 | 1:28 | 2.392 | 47.157 | Haidian |
| Gongzhufen | 公主坟 | 1 | 1 32 33 40 52 62 64 68 74 76 77 89 94 134 300 300快 308 323 335 337 368 370 374 394 437 603 624 631快 698 977 977快 夜1 夜5 夜30 | 1:30 | 1.016 | 48.173 | Haidian |
| Xidiaoyutai | 西钓鱼台 | | 4 27 33 40 62 85 87 92 97 121 335 414 481 612 627 632 634 653 686 693 698 967 977 977快 BRT4(快速公交4) 快速直达专线104 快速直达专线137 快速直达专线144 夜13 夜16 | 1:33 | 2.386 | 50.559 | Haidian |
| Cishou Si | 慈寿寺* | 6 | 33 40 61 73 85 481 507 632 夜3 专98 | 1:35 | 1.214 | 51.773 | Haidian |
| Chedaogou | 车道沟* | | 40 85 87 114 360 424 437 450 481 604 609 夜12 | 1:37 | 1.590 | 53.363 | Haidian |
| Changchun Qiao | 长春桥 | 12 | 33 74 355 360 365 424 425 437 539 644 664 688 921 | 1:39 | 1.205 | 54.568 | Haidian |
| Huoqiying | 火器营 | | 74 424 437 专75 | 1:41 | 0.961 | 55.529 | Haidian |
| — ↓ Loop line - towards Bagou ↓ — | — ↓ Loop line - towards Bagou ↓ — | — ↓ Loop line - towards Bagou ↓ — | — ↓ Loop line - towards Bagou ↓ — | — ↓ Loop line - towards Bagou ↓ — | 1.495 | 57.024 | |

## Technology
### Rolling Stock

Line 10 utilizes a fleet of 6-car DKZ15 trains manufactured by CRRC Changchun Railway Vehicles. Initially when Phase I opened the line was operated with a fleet of only 40 trainsets (240 cars). Some sets operated on the Olympic section of Line 8 before Line 8 was extended and acquired its own dedicated rolling stock. When Line 10 Phase II opened the fleet was expanded to 84 trains. However the two existing depots serving Line 10 had insufficient capacity for the entire fleet. Therefore, only 76 trainsets could operate on the line with 8 being temporary stored in other Beijing Subway depots. With the opening of the new depot in Songjiazhuang and the need to reduce the headway on line to decrease crowding, an additional 32 trainsets were ordered. The fleet grew to 116 trainsets allowing Line 10 to operate at a headway of every 2 minutes throughout the line during rush hour. Some trains had some seats removed to increase capacity.
| Model | Manufacturer | Year Built | Amount in Service | Fleet Numbers | Depot |
| DKZ15 | CRRC Changchun Railway Vehicles Beijing Subway Rolling Stock Equipment CRRC Dalian | 2007 | 43 | W401–W443 | Wanliu Wulu Songjiazhuang |
| DKZ34 | CRRC Changchun Railway Vehicles Beijing Subway Rolling Stock Equipment CRRC Dalian | 2011 | 41 | 10 044–10 084 | Wanliu Wulu Songjiazhuang |
| DKZ46 | CRRC Changchun Railway Vehicles Beijing Subway Rolling Stock Equipment CRRC Dalian | 2013 | 32 | 10 085–10 116 | Wanliu Wulu Songjiazhuang |

### Signaling system

Siemens Transportation Systems and China Railway Signaling & Communication Corp. have equipped the entire line with Siemens's Trainguard MT Communication Based Train Control (CBTC) system. As a fallback, ETCS Level 1 is also available.