After 10 Years of Construction, New Taipei City Government Hopes for Sanying Line to Open in June
The New Taipei Metro Sanying Line, after 10 years of construction and overcoming challenges including a pier collapse incident, is now in the final inspection phase. Mayor Hou Yu-ih hopes for an opening in June, which would reduce commute time to Taipei to approximately 20 minutes. The Sanying Line is about 14.29 kilometers long with 12 stations, operating on an automated, driverless system. The trains are designed in Italy and manufactured in Japan. Upon opening, it will significantly shorten commute times to Taipei and features a direct transfer channel at Dingpu Station. Additionally, noise barrier optimization projects are planned, and provisions have been made for a future extension to Bade. The city government has also completed pedestrian walkway improvements, optimized bus routes, and established parking facilities to enhance commuting convenience.
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- 📰 Published: May 16, 2026 at 15:19
- 🔍 Collected: May 16, 2026 at 15:32 (12 min after Published)
- 🤖 AI Analyzed: May 16, 2026 at 15:42 (10 min after Collected)
The New Taipei Metro Sanying Line, after 10 years of construction, has entered the final overall inspection stage for its initial review. Mayor Hou Yu-ih hopes for an opening in June, which would reduce commute time to Taipei to approximately 20 minutes.
The Sanying Line is New Taipei City's first self-operated medium-capacity metro system. It begins with a shared transfer at Dingpu Station on the Bannan Line and has a total length of approximately 14.29 kilometers, with 12 stations passing through Tucheng, Sanxia, and Yingge. The entire line is elevated. Since construction began on July 21, 2016, it has taken 10 years to complete, overcoming challenges such as elevated construction and depot construction.
A serious industrial safety accident occurred at the Sanying Line construction site on November 20, 2021, when a pier formwork allegedly could not withstand the weight of the concrete, causing a 15-meter scaffolding to collapse, resulting in 3 deaths and 2 injuries. After the city government halted work for review and improvement, and with the efforts of the construction contractor, civil and electromechanical engineering works were gradually completed. Many important milestones were achieved, from approval and commencement of work to power transmission and full-line system integration testing.
The Sanying Line operates with an automated system, with trains running in driverless mode, ensuring safety through intelligent monitoring. All 29 trains have arrived at the depot for testing. The train cars are designed in Italy and manufactured in Japan, emphasizing comfort and technological sophistication.
The New Taipei City Department of Rapid Transit Systems stated that testing and acceptance are in the critical phase. The trains have completed full-line power transmission, dynamic testing, and system integration testing, simulating high-density multi-train operations to verify functions such as platform screen door and train stopping accuracy control, and safety braking. The train availability rate reached 100% in April this year.
The Department of Rapid Transit Systems indicated that system availability has reached 99.9094% with stable overall operation. After reporting to the city government to initiate the initial review process, the city government formed an initial review committee. The initial review was conducted on April 26th. After improvements based on the review results, the case was reported to the Ministry of Transportation for a final review to ensure safe operation.
The opening of the Sanying Line will reduce commute time to Taipei by approximately 20 minutes and has already brought benefits to local development. To facilitate transfers from the Bannan Line's Dingpu Station, a direct transfer channel has been specially set up, effectively reducing transfer time to just 2 minutes.
The Department of Rapid Transit Systems and the Metro Company are simultaneously preparing for the opening, including personnel training, trial operations, and safety checks. Concurrently, the Department of Rapid Transit Systems is undertaking noise barrier optimization projects along the line, prioritizing improvements in school areas and densely populated areas to balance public quality of life.
According to the Department of Rapid Transit Systems' plan, the tail track at the Sanying Line's terminal station, Yingtao Fude Station, has been reserved for the future construction of the Sanying Line extension to Bade. This extension will be approximately 4.03 kilometers long, connecting to the Dayan Station on the Taoyuan Metro Green Line. It will feature shared construction and in-station transfers. In the future, passengers will be able to travel directly from Tucheng's Dingpu to Bade, Taoyuan, establishing a prosperous metro network for the Greater Taipei-Taoyuan region.
The New Taipei City Government stated that prior to the opening of the Sanying Line, the city government has undertaken cross-departmental preparatory work, including the improvement of over 6,000 meters of sidewalks, the installation of pedestrian refuge islands and anti-collision guardrails, the introduction of new Sanying Line 1 and 2 bus routes and "leapfrog" buses, the planning of 1,524 motorcycle parking spaces and 781 YouBike stations, and the comprehensive optimization of transfer routes and pedestrian environments to enhance commuting convenience. (Edited by Lin Shu-hui) 1150516
The Sanying Line is New Taipei City's first self-operated medium-capacity metro system. It begins with a shared transfer at Dingpu Station on the Bannan Line and has a total length of approximately 14.29 kilometers, with 12 stations passing through Tucheng, Sanxia, and Yingge. The entire line is elevated. Since construction began on July 21, 2016, it has taken 10 years to complete, overcoming challenges such as elevated construction and depot construction.
A serious industrial safety accident occurred at the Sanying Line construction site on November 20, 2021, when a pier formwork allegedly could not withstand the weight of the concrete, causing a 15-meter scaffolding to collapse, resulting in 3 deaths and 2 injuries. After the city government halted work for review and improvement, and with the efforts of the construction contractor, civil and electromechanical engineering works were gradually completed. Many important milestones were achieved, from approval and commencement of work to power transmission and full-line system integration testing.
The Sanying Line operates with an automated system, with trains running in driverless mode, ensuring safety through intelligent monitoring. All 29 trains have arrived at the depot for testing. The train cars are designed in Italy and manufactured in Japan, emphasizing comfort and technological sophistication.
The New Taipei City Department of Rapid Transit Systems stated that testing and acceptance are in the critical phase. The trains have completed full-line power transmission, dynamic testing, and system integration testing, simulating high-density multi-train operations to verify functions such as platform screen door and train stopping accuracy control, and safety braking. The train availability rate reached 100% in April this year.
The Department of Rapid Transit Systems indicated that system availability has reached 99.9094% with stable overall operation. After reporting to the city government to initiate the initial review process, the city government formed an initial review committee. The initial review was conducted on April 26th. After improvements based on the review results, the case was reported to the Ministry of Transportation for a final review to ensure safe operation.
The opening of the Sanying Line will reduce commute time to Taipei by approximately 20 minutes and has already brought benefits to local development. To facilitate transfers from the Bannan Line's Dingpu Station, a direct transfer channel has been specially set up, effectively reducing transfer time to just 2 minutes.
The Department of Rapid Transit Systems and the Metro Company are simultaneously preparing for the opening, including personnel training, trial operations, and safety checks. Concurrently, the Department of Rapid Transit Systems is undertaking noise barrier optimization projects along the line, prioritizing improvements in school areas and densely populated areas to balance public quality of life.
According to the Department of Rapid Transit Systems' plan, the tail track at the Sanying Line's terminal station, Yingtao Fude Station, has been reserved for the future construction of the Sanying Line extension to Bade. This extension will be approximately 4.03 kilometers long, connecting to the Dayan Station on the Taoyuan Metro Green Line. It will feature shared construction and in-station transfers. In the future, passengers will be able to travel directly from Tucheng's Dingpu to Bade, Taoyuan, establishing a prosperous metro network for the Greater Taipei-Taoyuan region.
The New Taipei City Government stated that prior to the opening of the Sanying Line, the city government has undertaken cross-departmental preparatory work, including the improvement of over 6,000 meters of sidewalks, the installation of pedestrian refuge islands and anti-collision guardrails, the introduction of new Sanying Line 1 and 2 bus routes and "leapfrog" buses, the planning of 1,524 motorcycle parking spaces and 781 YouBike stations, and the comprehensive optimization of transfer routes and pedestrian environments to enhance commuting convenience. (Edited by Lin Shu-hui) 1150516
FAQ
How long has the Sanying Line been under construction?
The Sanying Line has been under construction for 10 years.
When is the Sanying Line expected to open?
Mayor Hou Yu-ih hopes for the line to open in June.
What is the total length of the Sanying Line and how many stations does it have?
The Sanying Line is approximately 14.29 kilometers long and has 12 stations.
What safety measures are in place for the Sanying Line trains?
The trains operate in a driverless, automated mode with intelligent monitoring to ensure safety.
What improvements have been made to enhance commuting convenience besides the metro line?
Improvements include sidewalk enhancements, new bus routes, optimized transfer routes, and increased parking and YouBike facilities.