Tag: Railway Safety
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EN 50129:2026 vs EN 50129:2018: What Actually Changed?
If you work with railway signalling safety cases, you’ve probably already asked the question: Do I need to relearn EN 50129 because of the 2026 edition? The short answer is no. Closer than we were. But far less close than we should be given the time and resources invested. And in some respects, the regulatory… Read more
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European Railway Harmonisation: Good Intentions, Questionable Results
The ambition was clear. A single European railway area where trains cross borders seamlessly, signalling systems interoperate without modification, and infrastructure managers work from a common rulebook. Twenty-five years of regulation, directives, and technical specifications later — how close are we? Closer than we were. But far less close than we should be given the… Read more
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ETCS Retrofit Under TSI CCS 2023: The Real Challenges
Knowing what TSI CCS 2023 requires is one thing. Applying it to an existing fleet is another. Retrofit projects are where the new regulation creates the most complexity — and where teams with incomplete preparation consistently run into serious difficulty. Why Retrofit Is Harder Than Greenfield New infrastructure projects start with a clean slate. Retrofit… Read more
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TSI CCS 2023: What Changed and Why It Matters
The European railway signalling landscape changed significantly in 2023. The new Technical Specification for Interoperability — Control Command and Signalling (TSI CCS 2023) is not just a regulatory update. It redefines how ETCS systems are designed, integrated, and certified across Europe for the next decade. Whether you are a signalling engineer working on an ETCS… Read more
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What Does SIL Mean in Railway Safety Standards?
Safety is a top priority in the railway industry, and one key concept that plays a crucial role in ensuring system reliability is SIL – Safety Integrity Level. But what exactly does SIL mean, and why is it important in railway safety standards? In this post, we’ll break down the fundamentals of SIL, how it… Read more