Functional Safety Certification for Autonomous Trains and Metros: EN 50126 Explained

Date
2027-01-07
Location
Online
Host
Zach L

About this event

A Lunch-and-Learn for Plant Managers pursuing functional safety certification. A live 30-minute lunch-and-learn on EN 50126 (Railway RAMS) for autonomous trains and metros, built for plant managers pursuing functional safety certification. What We'll Cover: What EN 50126 (Railway RAMS) requires and how its scope applies to autonomous trains and metros Mapping EN 50126 clauses to the certification evidence assessors expect System-specific hazards and safety functions typical of autonomous trains and metros Common findings that delay certification, and how to avoid them A practical readiness roadmap for plant managers preparing for assessment Related topics: EN 50126 · Autonomous Trains and Metros · functional safety certification · functional safety assessment · Lunch-and-Learn · Plant Mana

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About EN 50126 (Railway RAMS)

This event covers the compliance, engineering, and verification requirements defined by EN 50126.

EN 50126 defines the RAMS lifecycle (Reliability, Availability, Maintainability, Safety) for railway applications: system-level process from concept to decommissioning, allocating safety requirements (SIL) and managing risk acceptance for rail systems.

What it regulates

Lifecycle phases and deliverables, hazard analysis and risk assessment (with CSM-RA interplay in the EU), safety case structure per EN 50129, and apportionment of RAMS targets to subsystems.

Who must comply

Railway operators, infrastructure managers, and rolling stock/signaling suppliers in EN markets.

Key requirements of EN 50126

  • 14-phase lifecycle with gate reviews
  • Hazard log discipline throughout
  • Risk acceptance principles (e.g., GAME/ALARP variants, explicit risk estimation)
  • Interfaces to 50128 (software) and 50129 (safety approval)

Key concepts: EN 50126

Hazard log
The living register tracking hazards to closure across the project and into operation.
RAMS
The four coupled system qualities managed as one engineering discipline.
THR
Tolerable hazard rate — quantitative targets allocated to functions, mapping to SILs.

Frequently asked questions: EN 50126

How does the CENELEC trio fit together?

50126 is the umbrella lifecycle, 50128/50657 govern software, 50129 defines the safety case and approval evidence for electronic systems — one project produces artifacts under all three.

Standard information based on the published text of EN 50126 (Railway RAMS). Event content is provided by the host. For authoritative guidance, consult the official standard body.