Line 1 of the Tianjin Metro (Chinese: 天津地铁一号线; pinyin: Tiānjīn Dìtiě Yī Hào Xiàn) runs from the north-west to the south-east of downtown Tianjin. It is 42.227 km (26.2 mi) in length with 32 stations (currently 27 stations in operation).

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Line 1
A train at Liuyuan
Overview
Status	Operational
Owner	Tianjin City Infrastructure Construction and Investment Group Ltd.
Locale	Tianjin, China
Termini	Donggulu Liuyuan
Stations	32 (27 in operation)
Service
Type	Rapid transit
System	Tianjin Metro
Services	1
Operator(s)	Tianjin Line 1 Rail Transit Operation Co., Ltd.
History
Opened	28 December 1984; 39 years ago (1984-12-28) (old system) 12 June 2006; 17 years ago (2006-06-12) (new system)
Closed	2001 to 2006
Technical
Line length	42.227 km (26.2 mi)
Number of tracks	2
Character	Underground, At-grade, & Elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Route map Legend Hanzi English 李楼 Lilou 双林 Shuanglin 财经大学 Caijingdaxue ( Economics & Finance College ) 华山里 Huashanli ( 11 ) 复兴门 Fuxingmen 陈塘庄 Chentangzhuang 土城 Tucheng ( 8 ) 南楼 Nanlou 下瓦房 Xiawafang  5  小白楼 Xiaobailou 营口道 Yingkoudao (Yingkou Road)  3  鞍山道 Anshandao (Anshan Road) 海光寺 Haiguangsi (Haiguang Temple) ( 7 ) 二纬路 Erweilu (Erwei Road) 西南角 Xi'nanjiao  2  西北角 Xibeijiao 西站 Xizhan (Tianjin West railway station) 洪湖里 Honghuli 勤俭道 Qinjiandao (Qinjian Road) 本溪路 Benxilu (Benxi Road) 佳园里 Jiayuanli 瑞景新苑 Ruijingxinyuan 刘园 Liuyuan This diagram: view talk edit

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The line started operations on 12 June 2006. It was rebuilt from the original Tianjin Metro line, which opened in 1976, but had to close down and undergo renovations in 2001 as part of the system's modernizing project. The line's color is red.

Construction began in 1970. The first section, spanning 3.6 km of track and 4 stations, which are named Xinhualu, Yingkoudao, Anshandao and Haiguangsi stations, was completed by February 1976. The second section, with an additional 1.6 km of track and the Xi'nanjiao and Erweilu stations, was completed by 1980. After construction resumed, the total length was 7.4 km, with 8 stations, and service on the line began on 28 December 1984.^{[citation needed]}

To cut construction costs, the authority used an abandoned canal bed to build part of the system. Thus the underground section is only 2–3 meters beneath the street surface, and was the world's shallowest metro. Years later, train frequency reduced and trains were commonly delayed. The rolling stock had become dilapidated, with most seat covers torn off, and lights becoming dim. To change to a more modern and cleaner system, a modernization plan was laid out in 2000. In preparation, the system was closed on 1 September 2001, with renovation starting on 21 November after being delayed due to the terrorist attacks of 11 September. After introducing new rolling stock, adding half-height platform screen doors and extending the line to Shuanglin, the line was completed at the end of 2005 and re-opened on 12 June 2006.^{[citation needed]}

In 2008, Xizhan Station was temporarily closed for the reconstruction of Tianjin West railway station. It reopened on 1 July 2011.^{[citation needed]}

In 2016, the at-grade Shuanglin station was closed. On 3 December 2018, Shuanglin station was reopened as a new underground station.^{[citation needed]}

On 3 December 2018, Line 1 also extended one station, from Shuanglin station to Lilou station.^{[citation needed]}

On 28 December 2019, four stations on the eastern extension (Gaozhuangzi, Beiyangcun, Guozhanlu, Donggulu) was opened.^[1]

On 12 May 2021, Beiyangcun station renamed to Guojiahuizhanzhongxin station, and Guozhanlu station renamed to Guoruilu station.^[2]

Hongnihedong station is expected to open in July 2023.^[3]

The signal system was also replaced by the new ATO system, and the running stock was also overhauled.

• Coaches per train - 6.
• Frequency - 3-4 minutes in peak hours & 8 minutes at other times.
• Operating hours - 5:30 to 22:30.

• Line 1 train exterior
• Line 1 train interior