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]
| Line S1 | |
|---|---|
| Overview | |
| Other name | Hefei Xinqiao Airport Line S1[1] |
| Status | Under construction |
| Owner | Hefei Metro |
| Locale | Hefei, Anhui, China Huainan, Anhui, China |
| Termini | |
| Stations | 12 (Hefei section)[2] 2 (Huainan section) 14 (total)[3] |
| Service | |
| Type | Rapid transit |
| System | Hefei Metro |
| Depot(s) | Gangji depot[4] |
| History | |
| Opened | July 2026 (estimated)[5] |
| Technical | |
| Line length | 36.4 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 tracks | 2 |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
| Electrification | 1,500 V DC Overhead catenary contact |
| Operating speed | 120 km/h (75 mph) (Maximum design speed) 65 km/h (40 mph) (Average speed) |
It's the first intercity subway line in Anhui province using GoA4 automation level.[6]
History
editConstruction 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
editThere 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
editThis 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
edit- 1 2 "离通车更近一步！合肥新桥机场S1线正式跑图". 10 April 2026.
- 1 2 3 4 "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.
- 1 2 3 4 "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.
- ↑ "合肥再添一条地铁！". 16 June 2025.
- 1 2 "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.
- 1 2 "S1号线即将通车！第四轮地铁规划最新实情辟谣". 21 May 2026.
- 1 2 "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.
- 1 2 "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.
- 1 2 "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.
- ↑ "合肥新桥机场S1线工程".
- ↑ "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.
- ↑ "合肥新桥机场S1号线最新消息!". 22 August 2025.
- ↑ "【e周发声】第367期". 20 April 2026.
- ↑ "合肥新桥机场S1线最新消息！". 17 April 2025.
- ↑ "征求意见！合肥地铁10个新站名公布". 8 May 2025.
- ↑ "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.
- ↑ "合肥新桥机场S1线列车基础信息+功能介绍". 11 August 2025.