S1 line (Beijing Subway)

S1 Line (Chinese: 北京地铁S1线; pinyin: běijīng dìtiě S-yī xiàn) of the Beijing Subway is a medium-low speed maglev line. It is operated by the Beijing Mass Transit Railway Operation Corporation Limited. The line was opened on December 30, 2017. It starts from Jin'anqiao station and goes west towards Mentougou District.[8]

Not to be confused with the current Sub-Central line, Beijing Suburban Railway also designated as S1.

S1 line
 S1 
S1 Line under test.
Overview
Other name(s)
  • M26 (planned name)
  • Line 26
  • Mentougou Line[1]
  • Datai Line[2]
  • Beijing Low-speed Maglev[3]
  • Beijing Maglev[4]
TypeRapid Transit, Maglev
SystemBeijing Subway
LocaleShijingshan and Mentougou districts
Beijing
TerminiShichang
Jin'anqiao
(Will be extended to Pingguoyuan in 2021[5])
Stations7
Operation
OpenedDecember 30, 2017 (2017-12-30)
Operator(s)Beijing Mass Transit Railway Operation Co., Ltd
Depot(s)Shimenying
Technical
Line length9.1 km (5.7 mi)[6]
(10.2 km when extends to Pingguoyuan)
Operating speed100 km/h (62 mph)[7]
Route map
Jingmen railway
line 6 Lucheng
 Pingguoyuan (to be opened 2021)
Line 6
Line 1 (station closed for renovation)
line 1 Sihui East
 Jin'anqiao
Line 6
Line 11 (to be opened 2021) Jindingjie－Shougang
Shijingshan tunnel of S1 line
Shijingshan tunnel of Fengsha railway
Yongding River
 Sidaoqiao
 Qiaohuying
Fengcun ditch
 Shang'an
 Liyuanzhuang
Xifengsi ditch
 Xiaoyuan
 Shichang
Shimenying depot

The line uses the medium-low speed magnetic levitation technology which can give a top speed of 105 km/h.[9][10] The actual speed of the line is 100 km/h (62 mph).[7]

Six-coach maglev trains were built by the Tangshan Railway Vehicle, a subsidiary of CRRC.[11] It is China's 3rd commercial maglev train in operation.[11] S1 Line is part of Beijing's attempts to tackle environmental problems caused by heavy car use, coal burning and fast urbanization by upgrading its urban rail systems.[11]

The S1 Line designation is a holdover from a defunct plan to build several suburban railway lines in Beijing. S1 Line was envisioned to reuse the Jingmen Railway connecting Cishousi station to Mentougou District.[12] That plan was abandoned and the section between Pingguoyuan and Cishousi stations was replaced with Phase 3 of Line 6, and the other section was replaced with today's Maglev S1 Line.

History
The under construction Yongding River Bridge of S1 Line.

When the S1 Line originally opened in 2017, it was not connected to the rest of the subway network. With the opening of Line 6 Phase 3 on 30 December 2018, passengers can transfer to Line 6 at Jin'anqiao.

SegmentCommencementLengthStation(s)Name
Jin'anqiao — Shichang 30 December 2017 9.1 km (5.65 mi)[6] 7 (initial phase)

Future Development

The S1 line will be extended to Pingguoyuan. The extension is under construction. The elevated station for S1 line will open together with the Pingguoyuan Transportation Hub which will be finished in 2021.[5]

Stations
Station Name Connections Nearby Bus Stops Distance
km[13]		 Location
English Chinese
Shichang 石厂 931 948 959 960 0.000 0.000 Mentougou
Xiaoyuan 小园 890 960 965 981 994 1.297 1.297
Liyuanzhuang 栗园庄 941 981 1.266 2.563
Shang'an 上岸 992 1.044 3.607
Qiaohuying 桥户营 1.065 4.672
Sidaoqiao 四道桥 941 0.834 5.506
Jin'anqiao 金安桥  6  325 336 337 358 370 396 472 489 876 892 921 929 931 932 941 941快 948 959 961 977 977快 981 BRT4(快速公交4) 专61 专110 2.710 8.216 Shijingshan
Pingguoyuan 苹果园  1   6  — —

References
  1. simplified Chinese: 门头沟线; traditional Chinese: 門頭溝線; pinyin: Méntóugōu Xiàn
  2. 大台线; 大台線; Dàtái Xiàn
  3. 北京低速磁悬浮; 北京低速磁懸浮; Běijīng Dīsù Cíxuánfú
  4. 北京磁浮; Běijīng Cífú
  5. "市重大项目办到苹果园交通枢纽现场办公". 20 November 2019.
  6. "北京首条中低速磁浮交通线路S1线年底部分开通". 16 September 2017. 年底石门营站至金安桥站9.1公里的线路先行开通试运营
  7. "唐车造北京S1线磁浮列车开始以100km/h载客运行". 7 November 2018.
  8. "S1 line of Beijing subway to use maglev trains". eBeijing, the Official Website of the Beijing Government. Archived from the original on 20 September 2013.
  9. "Beijing's first maglev train plans to open in 2012". People's Daily Online.
  10. "Nation New maglev line to connect western Beijing". People's Daily Online.
  11. NAN, ZHONG (19 February 2014). "Maglev trains speeding toward greener future". China Daily Asia. Retrieved 4 January 2015.
  12. 北京市规划建6条市郊铁路 速度比地铁快一倍(图)-搜狐财经. business.sohu.com. Sohu. Retrieved 21 December 2017.
  13. "S1线路网车站站间距信息". Retrieved 29 April 2020.
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