Loop line (Chongqing Rail Transit)

The Loop line of Chongqing Rail Transit is a rapid transit loop line in Chongqing, China.^[1] The line is also known as Line 0.

Loop line
A Loop line train running on Gaojiahuayuan Bridge
Overview
Other name(s)	Line 0
Native name	重庆轨道交通环线
Status	Operational
Line number	0
Locale	Chongqing, China
Stations	33
Service
Type	Rapid transit
System	Chongqing Rail Transit
Operator(s)	Chongqing Rail Transit (Group) Co., Ltd.
Depot(s)	Majiayan, Tushan, Sigongli
History
Opened	28 December 2018; 6 years ago (2018-12-28)
Technical
Line length	50.93 km (31.65 miles)
Number of tracks	2
Character	Underground and elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Electrification	1500 V DC overhead line
Operating speed	90 km/h (56 mph)
Route map Legend Honghudonglu Min'an Ave. 4 Dongbu Park Line 4 to Huangling Line 10 to Wangjiazhuang 5 6 Ranjiaba Chongqing N. Station S. Square 3 10 Line 5 to Yuegangbeilu Yulu Sports Park Wulidian 6 9 Nanqiaosi Chaotianmen Bridge across Yangtze River Yudaishan Danzishi Line 4 to Panguilu Tushan Gaojia Huayuan Rail Transit Bridge across Jialing River Tushan depot Chongqing University Renji 1 9 Shapingba Shangxinjie 6 Tianxingqiao Shanghao Majiayan depot Haitangxi Chongqing Library Luojiaba Fengmingshan Sigongli depot Shangqiao Sigongli 3 Line 10 to Lanhualu 5 Chongqing W. Nanhu Line 5 to Tiaodeng Haixialu Hualong Egongyan Rail Transit Bridge across Yangtze River Erlang Caiyunhu Xiejiawan 2 Chenjiaping Olympic Sports Center 18

The metro line serves three major railway stations in Chongqing: Chongqing North railway station, Shapingba railway station, and Chongqing West railway station.^[2]

Interior of a Loop line train

History

The line began construction on October 28, 2013.^[3]

The northeastern section was opened on December 28, 2018. The southern section with the Egongyan Rail Transit Bridge opened on December 30, 2019.^[4] The remaining section opened on January 20, 2021.

Opening timeline

Segment	Commencement	Length	Station(s)	Name
Chongqing Library – Haixialu	28 December 2018	33.7 km (20.94 mi)[5]	17	Northeastern Section
Min'an Ave.	11 January 2019	infill station	1
Luojiaba & Danzishi	1 July 2019	infill stations	2
Nanqiaosi	15 December 2019	infill station	1
Haixialu – Erlang	30 December 2019[4]	9.5 km (5.90 mi)[6]	5	Southern section
Chongqing Library – Chongqing West Railway Station – Erlang	20 January 2021	7.6 km (4.72 mi)[7]	4	Remaining section
Tianxingqiao & Renji	4 February 2021	infill stations	2
Shanghao	7 October 2023	infill station	1

Stations

Service routes		Station №	Station name		Connections	Distance km		Location
E	L		English	Chinese
↑ Loop towards Hualong ↑
↑		Through-service to/from Tiaodeng via Line 5
●	●		Chongqing West Station	重庆西站	Line 5 CXW	1.6	50.9	Shapingba
●	●		Shangqiao	上桥		2.0	2.0
｜	●		Fengmingshan	凤鸣山		1.1	3.1
●	●		Chongqing Library	重庆图书馆		1.2	4.3
｜	●		Tianxingqiao	天星桥		1.1	5.4
●	●		Shapingba	沙坪坝	Line 1      Line 9  27  CYW	1.6	7.0
｜	●		Chongqing University[8]	重庆大学[8]		1.5	8.5
｜	●		Yudaishan	玉带山	4	2.0	10.5	Jiangbei
｜	●		Nanqiaosi	南桥寺		1.7	12.2
｜	●		Sports Park	体育公园		1.2	13.4	Yubei
●	●		Ranjiaba	冉家坝	Line 5      Line 6	1.1	14.5
｜	●		Dongbu Park	动步公园		1.0	15.5
｜	●		Honghudonglu	洪湖东路		0.9	16.4
●	●		Min'an Ave.	民安大道	Line 4	1.6	18.0
↓		Through-service to/from Tangjiatuo via Line 4
	●		Chongqing N. Station S. Square[a]	重庆北站南广场	Line 3      Line 10  YW  CUW	2.1	20.1	Yubei
	●		Yulu	渝鲁		2.1	22.2	Jiangbei
	●		Wulidian	五里店	Line 6      Line 9	1.5	23.7
	●		Danzishi	弹子石		2.6	26.3	Nan'an
	●		Tushan	涂山		1.6	27.9
	●		Renji	仁济		1.3	29.2
	●		Shangxinjie	上新街	Line 6	1.0	30.2
	●		Shanghao	上浩		1.1	31.3
	●		Haitangxi	海棠溪		1.5	32.8
	●		Luojiaba	罗家坝		1.0	33.8
	●		Sigongli	四公里	Line 3	1.1	34.9
	●		Nanhu	南湖	Line 10	2.0	36.9
	●		Haixialu	海峡路		1.1	38.0
	●		Xiejiawan	谢家湾	Line 2	2.6	40.6	Jiulongpo
	●		Olympic Sports Center	奥体中心	Line 18	1.9	42.5
	●		Chenjiaping	陈家坪		1.3	43.8
	●		Caiyunhu	彩云湖		2.0	45.8
	●		Erlang	二郎		1.7	47.5
	●		Hualong	华龙		1.7	49.2
↓ Loop towards Chongqing West ↓

1. The former translation is South Square of Chongqingbei Railway Station, which has been replaced since the opening of Line 10's station

Accident

On January 8, 2019, a train accident occurred in the tunnel between Haixialu and Nanhu where a train (000141-000146) struck an unsecured and improperly opened civil defense blast door. As a result, one person was killed and three people were injured.^[9] Two cars (000141 and 000142) have been out of service ever since the incident and stored in CRRC Chongqing Changchun Vehicle separately.