Jiangtiao line

Jiangtiao line of Chongqing Suburban Railway is a suburban rapid transit line in Chongqing, China. The initial section of Jiangtiao line from Tiaodeng to Shengquansi opened on 6 August 2022.

Jiangtiao line
CRRC Changchun CCD5051 electric multiple unit used by Jiangtiao Line
Overview
Native name	重庆市郊铁路江跳线
Status	Operational
Locale	Chongqing, China
Termini	Tiaodeng Shengquansi
Stations	7
Service
Type	Rapid transit
System	Chongqing Rail Transit Chongqing Suburban Railway
Operator(s)	Chongqing Jiangtiao Line Rail Transit Operation Management Co., Ltd.
History
Opened	6 August 2022 (2022-08-06)
Technical
Line length	28.22 km (17.54 miles) (Tiaodeng – Shengquansi) 4.6 km (2.9 miles) (Shengquansi – Dingshan, under planning)
Number of tracks	2
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	Overhead line with Multiple systems 25 kV AC (Jiulongyuan – Shengquansi) 1.5 KV DC (Tiaodeng – Shilinsi)
Operating speed	120 km/h (75 mph) (Peak)
Route map Yuegangbeilu Shizishan depot Yuegang Avenue Chunxuan Avenue Central Park West      Line 10 Lujiagou Ganyue Avenue Yuhegou The EXPO Garden Center      Line 3 Danhe Huxiajie Chongguang Hemulu Renhe Dazhulin depot Xingfu Square Line 6 to Beibei Ranjiaba      Loop line      Line 6 Loop line Dalongshan      Line 6 Dashiba Line 6 to Chayuan Zhongshutuo Hongyancun Bridge across Jialing River Hongyancun Line 18 to Fuhualu      Line 9 Xietaizi      Line 1 Line 1 to Chaotianmen Shiqiaopu      Line 1 Shixinlu Line 1 to Bishan Bashan Fengxilu Chongqing W Railway Station      Loop line Loop line Huayan Temple Huachenglu Banshan Zhongliangshan Jinjianlu Jin'aoshan Huayan Center Zhongliangshan depot Jiangtiao line Tiaodeng      Line 18 Shilinsi Line 18 to Tiaodengnan DC 1.5 kV AC 25 kV Zhongliang Mts. Jiulongyuan Shuangfu Xiangtang Shuangfu Depot Jiangjin High-speed Railway Shengquansi Jijiang Rail Transit Bridge across Yangtze River Jijiang Dingshan = Virtual interchange: transport card only, re-entry required.

This line had been known as the extension of Line 5 during its construction. Nevertheless, by the time it started operation, the color, train numbers and station codes of this line had all been separated from Line 5. Since November 30th, 2023, through operation between Line 5 and this line came into service.

Jiangtiao line is also the first rapid transit line in China that supports auto-switching between AC and DC sections without dropping pantographs down. Switch actions are performed at a dead section east of Zhongliangshan Tunnel.

Sections

Tiaodeng – Shengquansi

The initial section from Tiaodeng to Shengquansi began construction in 2015. The initial section is about 28.22 km (17.54 mi) in length, including 5.8 km (3.6 mi) underground section and 22.42 km (13.93 mi) elevated or at-grade. The section opened on 6 August 2022.

Shengquansi – Dingshan

The remaining section from Shengquansi to Dingshan is currently under construction. Construction started on 28 December 2022. The section will be 4.524 km (2.811 mi) in length with 2 stations.

Opening timeline

Segment	Commencement	Length	Station(s)	Name
Tiaodeng – Shengquansi	6 August 2022	28.22 km (17.54 mi)	7	Initial section

Stations

Legend

  - In operation
  - Under planning

Service routes		Station No.	Station name		Connections	Distance km		Power supply	Location
			English	Chinese
	↑	Through-service to/from Shiqiaopu via Line 5
●	●	江跳/01	Tiaodeng	跳磴	Line 5      Line 18	-	0	1500 V DC	Dadukou
●	●	江跳/02	Shilinsi	石林寺		0.97	0.97
●	●	江跳/03	Jiulongyuan	九龙园		7.36	8.33	25 kV AC	Jiulongpo
●	●	江跳/04	Shuangfu	双福		4.32	12.65		Jiangjin
●	●	江跳/05	Xiangtang	享堂		5.32	17.97
●	●	江跳/06	Jiangjin High-Speed Railway	江津高铁	Jiangjinbei (planned)	4.37	22.34
●	●	江跳/07	Shengquansi	圣泉寺		3.99	26.33
		江跳/08	Jijiang	几江
		江跳/09	Dingshan	鼎山