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Press Release05 November 2026Siemens MobilityMunich
Siemens to supply Taiwan’s Taoyuan Metro with Signaling X technology
From left to right: Georgia Shih, Finance Director of Siemens Mobility GmbH Taiwan Branch, together with former Managing Director Thomas Stein and current Managing Director [Name einfügen], recently signed new contracts alongside Gareth Tang, President of Urban Solutions at ST Engineering, and Koh Chan Tia, Head of Global Sales for Urban Solutions, to deliver Signaling X solutions for Taoyuan’s Brown Line and Green Line Extension.
Siemens has been awarded the
signaling contracts for two major Taoyuan metro projects by ST Engineering’s
Urban Solutions business, the turnkey rail services provider leading project
management and systems integration, at this year’s Singapore Urban Mobility
Week. Siemens is bringing its latest Signaling X technology to Taiwan, setting
new standards for the future of rail signaling. Siemens will deliver the
approximately 11-kilometer Taoyuan Brown Line – including eight stations (both
underground and elevated) – as well as the Taoyuan Green Line Extension, which
connects the Green Line towards Zhongli (A23) and establishes vital future
connectivity to the major multi-level transit hub. The projects will leverage
advanced digital signaling technologies, including GoA4 fully automated train
operation and ATS (Automatic Train Supervision).
"We are proud to bring
our latest Signaling X technology to Taiwan," said Marc Ludwig,
Executive Vice President Rail Infrastructure at Siemens Mobility.
"This marks a major milestone in the digitalization of rail transport as
we deploy our new generation of software-defined signaling technology for the
Taoyuan Metro. Together with ST Engineering, we are building on our existing experience
in Taoyuan to reduce interface complexity and support efficient project
delivery, while providing the foundation for safe, reliable and fully automated
operations."
The project exemplifies the
shift from hardware-centric signaling systems to a software-defined,
virtualized architecture, allowing existing infrastructure to be modernized
more easily, flexibly and efficiently. Signaling X connects proven rail
technologies with a new generation of digital capabilities, driving the digital
transformation of rail infrastructure.
Signaling X as the
technology foundation for next-generation rail signaling
Signaling X is Siemens’ integrated technology foundation
for the digital transformation of rail infrastructure. It brings together
safety-critical and non-safety-critical applications, open interfaces and
services. The core of the architecture lies in the decoupling of software from proprietary
hardware, allowing applications to run on commercial off-the-shelf (COTS)
hardware instead of dedicated proprietary components. This paradigm shift
allows operators to modernize and scale their infrastructure independently of
specific hardware lifecycles. Maintenance is simplified, and spare parts
management becomes more efficient by leveraging globally available IT
standards. The DS3 (Distributed Smart Safe System) safety platform provides a
redundant environment with highest possible availability, in which
safety-critical applications meet the highest requirements according to CENELEC
Safety Integrity Level 4 (SIL4). Signaling X follows secure-by-design and
zero-trust principles for the operation of critical infrastructure.
For this press release
Siemens Mobility is a separately managed company of Siemens AG. As a leader in intelligent transport solutions for more than 175 years, Siemens Mobility is constantly innovating its portfolio. Its core areas include rolling stock, rail automation and electrification, a comprehensive software portfolio, turnkey systems as well as related services. With digital products and solutions, and the use of industrial AI, Siemens Mobility is enabling mobility operators worldwide to make their infrastructure intelligent, increase value sustainably over the entire lifecycle, enhance passenger experience, and guarantee availability. In fiscal year 2025, which ended on September 30, 2025, Siemens Mobility posted revenue of €12.4 billion and employed around 43,400 people worldwide. Further information is available at:
www.siemens.com/mobility