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Jiangtiao line
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; 2 years ago
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
Route map
	Legend
	Hongyancun Bridge
	across Jialing River
	Chongqing W
	Railway Station
	DC 1.5 kV
	AC 25 kV
	Jijiang Rail Transit Bridge
	across Yangtze River
	Virtual interchange: transport
	card only, re-entry required.
	This diagram: view; talk; edit;

Jiangtiao line of Chongqing Suburban Railway is a suburban rapid transit line in Chongqing, China.^[4] The initial section of Jiangtiao line from Tiaodeng to Shengquansi opened on 6 August 2022.^[1]

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.^[5]

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.^[6]

Sections

Tiaodeng – Shengquansi

The initial section from Tiaodeng to Shengquansi began construction in 2015.^[3] 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.^[2] The section opened on 6 August 2022.^[1]

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.^[7]

Opening timeline

Segment	Commencement	Length	Station(s)	Name
Tiaodeng – Shengquansi	6 August 2022	28.22 km (17.54 mi)^[1]	7	Initial section

Stations

Legend

- In operation
- Under planning

Service routes		Station No.	Station name^[8]		Connections	Distance km		Power supply	Location
Service routes		Station No.	English	Chinese	Connections	Distance km		Power supply	Location

	↑	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	1500 V DC	Dadukou
●	●	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	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