The Sanying or Light Blue line (; code LB) is a light metro line in New Taipei City, Taiwan. Its name is formed from the first chinese characters of Sanxia and Yingge. This line is long and has 12 stations and one depot. It runs from Dingpu Station on the Bannan line along Zhongyang Road to Sanxia District, and then crosses National Freeway No. 3 to Yingge District.
Soon, this line will extend into Taoyuan (Danan station).
History Approval for the construction of the line was given by the central government on 2 June 2015.
A turnkey contract was signed with Hitachi Rail STS and Hitachi Rail Italy as members of the ARH consortium on 21 June 2016. As leader of the consortium, Hitachi Rail STS's scope of work included the supply of train control technology and all the electromechanical systems for an equivalent value of €219.8 million (VAT excluded). Hitachi's scope of work included the design and manufacture of 29 two-car trains.
The main project started construction on 21 July 2016 and was opened to traffic on 30 June 2026.
Taoyuan extension An extension from Yingtao Fude Station in New Taipei City to Danan Station in Taoyuan was approved for construction on 1 August 2025, with construction planned to begin in late 2026. The three-station extension will be in length and cost roughly NT$16.06 billion (US$496 million). It will connect the New Taipei Metro to the Taoyuan Metro's Green line at Danan Station.
Controversy In August 2017, residents of Sanxia District protested against the planned station at Mazutian, citing controversy over land usage.
Stations Code Station name Station type Locale Sta. distance (km) Opened date Transfer Structure Platform Previous Total Sanying line LB01 Elevated Side Tucheng New Taipei 0.000 2026-06-30 LB02 1.005 1.005 rowspan="6" LB03 Sanxia 1.417 2.422 LB04 Island 1.397 3.819 LB05 Side 0.926 4.745 LB06 0.941 5.686 LB07 1.192 6.878 LB08 Yingge Station Island Yingge 2.980 9.858 LB09 0.783 10.641 rowspan="6" LB10 0.894 11.535 LB11 Side 1.293 12.828 LB12 0.952 13.780 LB12a rowspan="2" Bade Taoyuan 1.225 15.005 2034 LB13 1.158 16.163 LB14 Underground Island 1.842 18.005 References: 臺北都會區大眾捷運系統三鶯線暨周邊土地開發綜合規劃報告書：
Rolling stock
Sanying line operates 29 sets of two-car medium capacity Hitachi Rail Italy Driverless Metro. These trains were manufactured at Hitachi's Kasado Works plant in Yamaguchi rather than at Hitachi Rail's manufacturing facility in Pistoia.
See also Rail transport in Taiwan List of railway stations in Taiwan Ankeng light rail Danhai light rail
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