Wenzhou rail transit

The first phase of Line S1 begins at Tongling station in the west, south of Wenzhou South Railway Station, and ends at Shuang'ou Avenue station in the east, with 53.5 kilometres (33.243 mi) of track[2] and 18 stations.[3] Construction of the Shitan Tunnel of Line S1 began on 11 November 2011,[4] and the rest of the line officially began construction in March 2013. Line S1 was originally scheduled to open in October 2018.[5][3] The west section of the line (34.38 km (21.363 mi)[6] with 12 stations) was opened on January 23, 2019. The last section of the line (19.127 km (11.885 mi)[7] with 6 stations) was opened on September 28, 2019.[8]

The first phase of Line S2 runs southward from Xiatang Station in Yueqing to Renmin Road Station in Rui'an, with 63 kilometres (39.146 mi) of track and 20 stations, including one at Wenzhou Longwan International Airport. Construction of S2 began in January 2016.[10] Line S2 will feature distinct express and local services.[11] It will be finished in 2023.[9]

The first phase of Line S3 starts at Wenzhou Railway Station, along Wenrui Avenue, passes through Nanbaixiang, Xianyan, Tangxia to Rui'an City, then crosses Feiyun River to the south, passes Kunyang, Aojiang, Longgang, to Lingxi. Construction started in April 2020.[9]

The first phase of the Wenzhou Rail Transit S3 Line has a total length of 31.05 kilometres (19.29 mi), of which the underground line is 2.821 kilometres (1.753 mi) long and the elevated line is 24.17 kilometres (15.02 mi) long. The first phase of the Wenzhou Rail Transit S3 Line has 13 stations, including 10 elevated stations and 3 underground stations.

The second phase of the line for 26.40 billion yuan is 66 kilometres (41 mi) long, has 17 stations, and the proportion of underground lines is 32.4% and runs through districts Ruian City, Pingyang County, Cangnan County, and Longgang City.

Line M1 is a fully underground line with 23 stations. The length of the line is 32.5 km (20.2 mi).[12] Construction will start in late 2020 and is expected to open in 2025.[9]

Phase 1 of Line M2 is a fully underground line with 23 stations. The length of the line is 27.9 km (17.3 mi).[12]

Line S4 is planned to run in a northwest-southeast direction, from Tengqiao in the west to Huanghua Station in the east, where it will connect with Line S2. Its total length is projected to be 47.15 km (29.30 mi), with 10 stations.[3]