# Line 4 (Chongqing Rail Transit)

Line 4 of Chongqing Rail Transit is a rapid transit line in Chongqing, China.
Since June 2020, some Express trains through operate from Line 4 into the Loop line.
The line is nicknamed the 'Basket Line' by some locals, as rural, mostly elderly, residents use the line to bring baskets of vegetables into the city to sell at marketplaces.

## Opening timeline

| Segment | Commencement | Length | Station(s) | Name |
| Chongqing North Station North Square – Tangjiatuo | 28 December 2018 | 15.7 km (9.8 mi) | 7 | Phase 1 |
| Min'an Ave. – Chongqing North Station North Square | 11 January 2019 | 15.7 km (9.8 mi) | 1 | Phase 1 |
| Tangjiatuo – Huangling | 18 June 2022 | 32.8 km (20.4 mi) | 15 | Phase 2 |
| Gangcheng | 7 October 2023 | infill station | 1 | |

## Stations
### Phases 1 and 2

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)). In June 2018, debugging of the first segment of Phase I commenced. 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) with 15 stations (10 underground stations and 5 elevated stations). In 2022, debugging of this segment commenced. The segment opened on June 18, 2022.
| Service routes | Service routes | Station No. | Station name | Station name | Connections | Distance km | Distance km | Location |
| E | L | Station No. | English | Chinese | Connections | Distance km | Distance km | Location |
| ↑ | | Through-service to/from Tiaodeng via Loop line | Through-service to/from Tiaodeng via Loop line | Through-service to/from Tiaodeng via Loop line | Through-service to/from Tiaodeng via Loop line | Through-service to/from Tiaodeng via Loop line | Through-service to/from Tiaodeng via Loop line | Through-service to/from Tiaodeng via Loop line |
| ● | ● | | Min'an Ave. | 民安大道 | Loop line | - | 0.00 | Yubei |
| ● | ● | | Chongqing North Station North Square | 重庆北站北广场 | Line 10 | 2.27 | 2.27 | Yubei |
| ● | ● | | Toutang | 头塘 | Line 9 | 2.36 | 4.63 | Jiangbei |
| ｜ | ● | | Baoshuigang | 保税港 | Line 9 | 1.36 | 5.99 | Jiangbei |
| ｜ | ● | | Cuntan | 寸滩 | | 2.59 | 8.58 | Jiangbei |
| ｜ | ● | | Heishizi | 黑石子 | | 1.53 | 10.11 | Jiangbei |
| ｜ | ● | | Gangcheng | 港城 | | 1.29 | 11.4 | Jiangbei |
| ｜ | ● | | Taipingchong | 太平冲 | | 2.13 | 13.53 | Jiangbei |
| ● | ● | | Tangjiatuo | 唐家沱 | | 1.82 | 15.35 | Jiangbei |
| | ● | | Tieshanping | 铁山坪 | | 1.38 | 16.73 | Jiangbei |
| | ● | | Luqi | 鹿栖 | | 5.30 | 22.03 | Jiangbei |
| | ● | | Guoyuan Logistics Hub | 果园物流枢纽 | | 2.60 | 24.63 | Jiangbei |
| | ● | | Yuzui | 鱼嘴 | | 2.73 | 27.36 | Jiangbei |
| | ● | | Yanping | 雁坪 | | 1.45 | 28.81 | Jiangbei |
| | ● | | Shiheqing | 石河清 | | 2.69 | 31.50 | Jiangbei |
| | ● | | Fusheng | 复盛 | Fusheng | 2.16 | 33.66 | Jiangbei |
| | ● | | Sanbanxi | 三板溪 | | 1.32 | 34.98 | Jiangbei |
| | ● | | Longyi Ave. | 龙驿大道 | | 2.52 | 37.50 | Yubei |
| | ● | | Longxing | 龙兴 | | 1.56 | 39.06 | Yubei |
| | ● | | Gaoshita | 高石塔 | | 1.13 | 40.19 | Yubei |
| | ● | | Pufu | 普福 | | 1.96 | 42.15 | Yubei |
| | ● | | Tongzilin | 桐梓林 | | 1.91 | 44.06 | Yubei |
| | ● | | Shichuan | 石船 | | 2.64 | 46.70 | Yubei |
| | ● | | Huangling | 黄岭 | | 1.57 | 48.27 | Yubei |
* ↑ The former translation is North Square of Chongqingbei Railway Station, which has been replaced since the opening of Line 10's station

### Western Extension

* 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.
| Station No. | Station name | Station name | Connections | Distance km | Distance km | Location |
| Station No. | English | Chinese | Connections | Distance km | Distance km | Location |
| | Shunshuisi Park | 顺水寺公园 | | | | Jiangbei |
| | Shimahelijiao | 石马河立交 | | | | Jiangbei |
| | Yudaishan | 玉带山 | Loop line | | | Jiangbei |
| | Panxi | 盘溪 | | | | Jiangbei |
| | Dashiba | 大石坝 | Line 5 | | | Jiangbei |
| | Daqingcun | 大庆村 | | | | Yubei |
| | Huahuiyuan | 花卉园 | Line 6 | | | Yubei |
| | Longxi | 龙溪 | | | | Yubei |
| | Jiazhoulu | 嘉州路 | Line 3 | | | Yubei |