// Workers AI · dad joke modeWhat did the Bitong line say? It had a lot of "connection" issues.

Bitong line
Bitong line
Overview
Other name	Bishan-Tongliang line
Native name	重庆市郊铁路璧铜线
Status	Operational
Locale	Chongqing, China
Termini	Bishan; Tongliangxi;
Stations	9 (8 in operation)
Service
Type	Rapid transit
System	Chongqing Rail Transit; Chongqing Suburban Railway
History
Opened	January 2, 2025; 18 months ago
Technical
Line length	37.5 km (23.3 miles)
Number of tracks	2
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	25 kV AC Overhead line
Operating speed	140 km/h (87 mph)
Route map
Route map
	Legend
	Tongliang Longcheng
	Paradise Walk
	Sci-Tech Innovation
	Center
	Chongqing University of
	Science and Technology
	Chongqing Medical
	University
	Chongqing
	Railway Station
	Chongqingdong
	Railway Station
	This diagram: view; talk; edit;

The Bitong line of the Chongqing Suburban Railway is a suburban rapid transit line in Chongqing, China. It connects Tongliangxi [zh] in Tongliang District with Bishan station of the Chongqing Rail Transit, providing an interchange with Line 1 and through running with Line 27 in the future. It is 37.5 km long and features 9 stations.^[1]

Construction began in 2019. It opened on January 2, 2025 after a week of trial operation.^[2]^[3]^[4]

Opening timeline

Segment	Commencement	Length	Station(s)	Name
Bishan – Tongliangxi	January 2, 2025	37.5 km (23.30 mi)	9	Initial section

Route of Bitong line

Service routes		Station No.	Station name^[5]		Connections	Distance km		Location
Service routes		Station No.	English	Chinese	Connections	Distance km		Location

	↑	Through-service to/from Huimin via Line 27
●	●	/	Bishan	璧山	Line 1 Bishan SkyShuttle	-	0	Bishan
●	●	/	Bicheng	璧城
●	●	/	Hebian	河边
●	●	/	Qinglonghu (Under Construction)	青龙湖
●	●	/	Dalu	大路
●	●	/	Qinglong	庆隆				Tongliang
●	●	/	Sci-Tech Innovation Center	科创新城
●	●	/	Tongliang Longcheng Paradise Walk	铜梁龙城天街
●	●	/	Tongliangxi	铜梁西