Line S1 (Hefei Metro)

Line S1
Overview
Other nameHefei Xinqiao Airport Line S1[1]
StatusUnder construction
OwnerHefei Metro
LocaleHefei, Anhui, China
Huainan, Anhui, China
Termini
  • Shushan Chanyeyuan
  • Wudilun
Stations12 (Hefei section)[2]
2 (Huainan section)
14 (total)[3]
Service
TypeRapid transit
SystemHefei Metro
Depot(s)Gangji depot[4]
History
OpenedJuly 2026 (2026-07) (estimated)[5]
Technical
Line length36.4 km (22.6 mi) (Hefei section)[2]
11.1 km (6.9 mi) (Huainan section)
47.5 km (29.5 mi) (total) [3]
Number of tracks2
Track gauge1,435 mm (4 ft 8+12 in)
Electrification1,500 V DC Overhead catenary contact
Operating speed120 km/h (75 mph) (Maximum design speed)
65 km/h (40 mph) (Average speed)

Line S1 of Hefei Metro (Chinese: 合肥轨道交通S1号线) is the under construction L-shaped metro line in Hefei, Anhui, China. It's expected to begin operation in July 2026.[5][6][7] The maximum speed can reach 120 km/h, reduced travel time from Xinqiao Airport to Hefei city center and vice versa for only 30 minutes.[3]

It's the first intercity subway line in Anhui province using GoA4 automation level.[6]

History

Construction was began in 30 October 2021 with an estimated investment of 22.779 billion RMB.[8][9][10]

On 6 February 2025, the tunneling sections from Hefeixizhan to Shihe Lu was sucessfully connected.[11]

On 1 August 2025, Hefei Metro begin received first Line S1 rolling stock set.[7]

On 22 August 2025, the first section successfully obtained single-vehicle certification.[12]

In January 2026, the line successfully passed engineering acceptance, the main track laying was fully connected, and the bidding for power supply system and station equipment integration services was launched simultaneously.[9]

On 1 February 2026, the line was began trial operation without passengers, along with Line 7 Phase 1.[2]

On 10 April 2026, the line had entered "train testing" mode.[1]

On 16 April 2026, the section from Xinqiao Airport to Xinqiao Industrial Park successfully passed acceptance.[13]

On 18 May 2026, electrical installations of 110KV main substation and six station passed pre-acceptance inspections.[3]

Stations

There are 10 underground stations and 4 elevated stations spanning 47.5 km long (including 23 km of underground section and 24.5 km of elevated section) with an average station distance is 3.65 km.[8][14] The Hefei section spanning 36.4 km long, with 12 stations (10 underground stations and 2 elevated stations)[2]

Section Station name Transfer Distance

km

Location
English Chinese[15][16]
Huainan section Shouxian yanliu 寿县炎刘 Shou County, Huainan
Shouxian Jingkaiqu 寿县经开区
Hefei section Xinqiao 1 Hao Hangzhanlou (Xinqiao Airport Terminal 1) 新桥1号航站 HFE Shushan, Hefei
Xinqiao 2 Hao Hangzhanlou (Xinqiao Airport Terminal 2) 新桥2号航站 HFE
Yingbin Dadao 迎宾大道
Weihaihu 未来湖
Changxinghu 长兴湖
Weilai Dakexuecheng 未来大科学城 Changfeng County, Hefei
Gangji 岗集
Dayang 大杨 Luyang, Hefei
Luzhou Gongyuan 庐州公园
Hefei Xizhan (Hefeixi Railway Station) 合肥西站  3 
HFU
Shushan, Hefei
Sheng Zhongyiyuan Xiqu 省中医院西区
Wudilun 五里墩  2 

Rolling stock

This line uses 4-car type B rolling stock, each car approximately 20 meters long, 2.8 meters wide, and 3.8 meters high. The maximum passenger capacity of the entire vehicle can reach 1,300 people, with a top operating speed of up to 120 km/h. Throughout the train, it's equipped wireless charging equipment layout, with 10 wireless charging devices and 18 USB charging ports.[17]

References

  1. ^ a b "离通车更近一步!合肥新桥机场S1线正式跑图". 10 April 2026.
  2. ^ a b c d "合肥轨道7号线一期、新桥机场S1线,今起空载试运行". 1 February 2026.
  3. ^ a b c d "串联机场与西站,合肥轨道S1线两大关键工程通过验收关,距离通车更进一步". 19 May 2026.
  4. ^ "合肥再添一条地铁!". 16 June 2025.
  5. ^ a b "实锤!7月双线齐通,合肥地铁7号线+S1机场线最新进度曝光". 15 March 2026.
  6. ^ a b "S1号线即将通车!第四轮地铁规划最新实情辟谣". 21 May 2026.
  7. ^ a b "合肥新桥机场S1线最新进展:2025年底无法通车,预计2026年底才通". 11 August 2025.
  8. ^ a b "官方发布!合肥新桥机场S1线14个站点确定!岗集、空港迎来重大利好!". 3 October 2021.
  9. ^ a b "合肥新桥机场S1线进入通车倒计时!最新进展曝光,30分钟直达市区". 11 April 2026.
  10. ^ "合肥新桥机场S1线工程".
  11. ^ "合肥新桥机场S1线最新消息!合肥西站-史河路站区间左线顺利贯通!". 6 February 2025.
  12. ^ "合肥新桥机场S1号线最新消息!". 22 August 2025.
  13. ^ "【e周发声】第367期". 20 April 2026.
  14. ^ "合肥新桥机场S1线最新消息!". 17 April 2025.
  15. ^ "征求意见!合肥地铁10个新站名公布". 8 May 2025.
  16. ^ "关于公开征求合肥新桥机场S1线(寿县段)车站命名意见的公告". 29 April 2026.
  17. ^ "合肥新桥机场S1线列车基础信息+功能介绍". 11 August 2025.