Jiangtiao line
suburban railway line in Chongqing
Jiangtiao line of Chongqing Suburban Railway is a suburban rapid transit line in Chongqing, China. The initial section of Jiangtiao line from Tiaodeng to Shengquansi opened on 6 August 2022.
This line had been known as the extension of Line 5 during its construction. Nevertheless, by the time it started operation, the color, train numbers and station codes of this line had all been separated from Line 5. Since November 30th, 2023, through operation between Line 5 and this line came into service.
Jiangtiao line is also the first rapid transit line in China that supports auto-switching between AC and DC sections without dropping pantographs down. Switch actions are performed at a dead section east of Zhongliangshan Tunnel.
Sections
Tiaodeng – Shengquansi
The initial section from Tiaodeng to Shengquansi began construction in 2015. The initial section is about 28.22 km (17.54 mi) in length, including 5.8 km (3.6 mi) underground section and 22.42 km (13.93 mi) elevated or at-grade. The section opened on 6 August 2022.
The public source identifies “Jiangtiao line” as suburban railway line in Chongqing. This brief keeps that definition visible, then builds a research path around Jiangtiao, line and suburban.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q112169762. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2022, 2023 and 2015.
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This entry incorporates text from “Jiangtiao line” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.