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| image = 天津轨道交通--刘园折返线.jpg | image_width = 265px | image_alt = | caption = A train at Liuyuan | type = Rapid transit | system = Tianjin Metro | status = Operational | locale = Tianjin, China | start = Shuanglin | end = Liuyuan | stations = 22 | routes = 1 | ridership = | open = 28 December 1984 (old system) 12 June 2006 (new system) | close = | owner = Tianjin | operator = Tianjin Metro Corporation | character = Underground, At-grade, & Elevated | depot = | stock = | linelength = | tracklength = | notrack = 2 | gauge = | el = | speed = | elevation = | website = | map = | map_state = collapsed }} Line 1 of the Tianjin Metro () runs 26.2 km from the north-west to the south-east of downtown Tianjin and serves 22 stations. It started operations on 12 June 2006. The line 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. == History == Construction began in 1970. The first section, spanning 3.6 km of track and 4 stations, namely Xinhua Road, Yingkoudao, Anshandao and Haiguangsi stations, was completed by February 1976. The second section, with an additional 1.6 km of track and the Xinanjiao 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. To reduce construction costs, the transport authority had used an abandoned canal bed to form part of the system. Thus the underground section is only 2–3 meters under the street surface, and was the world's shallowest metro. This caused major problems as the years passed; trains were infrequent, sporadic and commonly delayed. The trains themselves where dilapidated, seat covers often torn off, and dim. Taking into consideration more modern, cleaner systems in East Asia, a massive reconstruction, modernization and expansion plan was laid out in 2000. In preparation, the system was closed on 1 September 2001, with renovation fully starting on 21 November after being delayed due to the terrorist attacks of 11 September. After purchasing new rolling stock, adding half-height platform screen doors and extending the line up to Shuanglin, the line was completed at the end of 2005 and was re-opened on 12 June 2006. In 2008, Xizhan Station was temporarily closed for three years to accommodate the reconstruction of the Tianjin West Railway Station. It reopened on 1 July 2011. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Line 1, Tianjin Metro」の詳細全文を読む スポンサード リンク
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