Line 4 (Chongqing Rail Transit)

Phase 1 (Min'an Ave. – Tangjiatuo) is 15.754 km (9.789 mi) in length (underground section is 11.075 km (6.882 mi), elevated section is 4.679 km (2.907 mi)).[3] In June 2018, debugging of the first segment of Phase I commenced.[5] Phase 1 of Line 4 began operating on December 28, 2018.

Phase 2 (Tangjiatuo – Huangling) is 32.8 km (20.4 mi) in length (21.25 km (13.20 mi) underground and 11.55 km (7.18 mi) elevated[6]) with 15 stations (10 underground stations and 5 elevated stations).[7] In 2022, debugging of this segment commenced.[8] The segment opened on June 18, 2022.[9]

Service routes		Station No.	Station name[8]		Connections	Distance km		Location
E	L		English	Chinese
↑		Through-service to/from Tiaodeng via Loop line
●	●	4/01	Min'an Ave.	民安大道	Loop	-	0.00	Yubei
●	●	4/02	Chongqing North Station North Square[lower-alpha 1]	重庆北站北广场	10	2.27	2.27
●	●	4/03	Toutang	头塘	9	2.36	4.63	Jiangbei
｜	●	4/04	Baoshuigang	保税港	9	1.36	5.99
｜	●	4/05	Cuntan	寸滩		2.59	8.58
｜	●	4/06	Heishizi	黑石子		1.53	10.11
｜	●	4/07	Gangcheng	港城		1.29	11.4
｜	●	4/08	Taipingchong	太平冲	18	2.13	13.53
●	●	4/09	Tangjiatuo	唐家沱		1.82	15.35
	●	4/10	Tieshanping	铁山坪		1.38	16.73
	●	4/11	Luqi	鹿栖	8	5.30	22.03
	●	4/12	Guoyuan Logistics Hub	果园物流枢纽		2.60	24.63
	●	4/13	Yuzui	鱼嘴		2.73	27.36
	●	4/14	Yanping	雁坪		1.45	28.81
	●	4/15	Shiheqing	石河清		2.69	31.50
	●	4/16	Fusheng	复盛	15  Fusheng	2.16	33.66
	●	4/17	Sanbanxi	三板溪		1.32	34.98
	●	4/18	Longyi Ave.	龙驿大道	8	2.52	37.50	Yubei
	●	4/19	Longxing	龙兴		1.56	39.06
	●	4/20	Gaoshita	高石塔		1.13	40.19
	●	4/21	Pufu	普福		1.96	42.15
	●	4/22	Tongzilin	桐梓林		1.91	44.06
	●	4/23	Shichuan	石船		2.64	46.70
	●	4/24	Huangling	黄岭		1.57	48.27

• Under construction

The Western extension of Line 4 started construction in March 2021. It will add 9 more stations west of Min'an Ave. station. The extension is 11 km (6.8 mi) in length.[10]