All four projects (X2Rail-1, X2Rail-3, X2Rail-5, 5GRAIL) involve ETCS-related signalling work, from start-up activities through prototyping to completion.
KONTRON TRANSPORTATION FRANCE SAS
French rail signalling and communication systems provider specializing in ETCS, ATO, moving block, and 5G-based train control technologies.
Their core work
Kontron Transportation France develops signalling, communication, and train control systems for the European rail sector. They specialize in ETCS (European Train Control System), automatic train operation (ATO), and moving block technology — the core building blocks of next-generation railway automation. Their work spans from onboard train control software to adaptable communication systems including the transition from GSM-R to 5G-based FRMCS. They contribute as a technology supplier within the Shift2Rail research programme, providing industrial-grade components for testing, prototyping, and system integration.
What they specialise in
X2Rail-1 focused on ATO and moving block start-up; X2Rail-3 on ATO over ETCS GoA2 and virtually coupled train sets; X2Rail-5 on demonstrators and prototypes.
5GRAIL specifically targets 5G-based FRMCS as successor to GSM-R; X2Rail-5 addresses adaptable communication for railway operations.
Both X2Rail-3 and X2Rail-5 include cybersecurity as a keyword, indicating work on securing train control and communication systems.
X2Rail-3 and X2Rail-5 both emphasize zero on-site testing approaches, pointing to simulation-based validation of signalling systems.
How they've shifted over time
Early projects (2016–2018) focused on foundational R&D for advanced signalling: control systems architecture, IP communication, ATO basics, and moving block concepts under Shift2Rail's Innovation Programme 2. By 2020, the focus shifted toward implementation maturity — 5G radio for railways (FRMCS), formal methods for safety assurance, fail-safe positioning, and integrated technology demonstrators. The progression follows a clear path from system design to prototyping and validation, with telecommunications becoming a stronger thread in recent work.
Moving toward deployment-ready rail communication and signalling systems, with growing emphasis on 5G/FRMCS and simulation-based testing — well positioned for follow-up work in Europe's Rail Joint Undertaking.
How they like to work
Kontron Transportation France participates exclusively as a third party, meaning they contribute through a lead partner rather than joining consortia directly. This is typical for large industrial suppliers who provide proprietary technology components to research programmes. Despite this indirect role, they have connected with 61 unique partners across 16 countries through the Shift2Rail X2Rail project series, giving them broad visibility in the European rail research community.
Connected to 61 partners across 16 countries through the Shift2Rail programme, giving them exposure to virtually all major European rail infrastructure managers, signalling companies, and research institutes. Their network is broad but mediated — built through third-party contributions to large-scale rail innovation consortia rather than direct bilateral partnerships.
What sets them apart
Kontron Transportation France sits at the intersection of embedded computing hardware and railway signalling software — a combination that few companies cover end-to-end. As part of the Kontron group (a major embedded computing manufacturer), they bring industrial production capability to what are often research-only partnerships. Their consistent participation across the entire X2Rail series (1, 3, and 5) signals deep institutional knowledge of the Shift2Rail technology roadmap, making them a reliable contributor for rail digitalization projects.
Highlights from their portfolio
- 5GRAILDirectly targets the replacement of GSM-R with 5G-based FRMCS — a critical infrastructure transition affecting every railway operator in Europe.
- X2Rail-5The culmination project of the X2Rail series, bringing together moving block, fail-safe positioning, formal methods, and integrated demonstrators into prototype-level maturity.
- X2Rail-3Introduced virtually coupled train sets and ATO over ETCS GoA2 — two technologies that could fundamentally change railway capacity and operations.