History
Construction began in 1970. The first section, spanning 3.6 km of track and 4 stations, which are named Xinhualu, , and stations, was completed by February 1976. The second section, with an additional 1.6 km of track and the and 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. 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 , the line was completed at the end of 2005 and re-opened on 12 June 2006. In 2008, Station was temporarily closed for the reconstruction ofDetails
*Coaches per train - 6. *Frequency - 3-4 minutes in peak hours & 8 minutes at other times. *Operating hours - 5:30 to 22:30.Infrastructure
Alignment and interchanges
The line is underground between Qinjiandao and stations, as well as Shuanglin andConcourse Level
All line 1 station concourses are equipped with a customer service center, ticket vending machines, automatic fare gates, and bank ATMs.Platform level
For security and other reasons, all line 1 stations haveOpening timeline
Stations (southeast to northwest)
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References
{{Tianjin Metro navbox, line1=yes Tianjin Metro lines 750 V DC railway electrification 1984 establishments in China Railway lines opened in 1984