Digital Courses/Catalog/ Rail

Rail Safety Case Authoring: EN 50126 / 50128 / 50129

For signaling, rolling-stock, and train-control engineers, this advanced workshop covers the RAMS lifecycle and the structure of a defensible safety case under EN 50126/50128/50129 — including independent software review and high-integrity argument construction.

LevelAdvanced
Length8 modules · ~12 hrs
FormatPrivate Virtual Team Session
CredentialCertificate of completion
What you’ll learn

Outcomes your team can apply on real hardware.

01

Manage the RAMS lifecycle under EN 50126

02

Structure a high-integrity safety case under EN 50129

03

Scope independent software functional-safety reviews (EN 50128 / 50657)

04

Author ConOps so processor-based systems interact safely with operators

Curriculum

Module outline.

A structured path from fundamentals to audit-ready evidence. Expand any module to see its lessons.

  • The rail safety lifecycle
  • RAM vs. safety
  • Apportionment
  • PHA, FMEA, FTA
  • Tolerable hazard rates
  • Hazard log
  • Safety case structure
  • Evidence & argument
  • Cross-acceptance
  • Software SIL
  • Independent review
  • Tool qualification
  • Concepts of operation
  • Human-operator interaction
  • Autonomous rail-robot integration

5 modules · 15 lessons · Certificate of completion

Standards covered

Grounded in the standards that matter.

EN 50126·EN 50128·EN 50129·EN 50657
Your instructor

Taught by a principal safety engineer.

Ben Twombly

Ben Twombly

Founder & CEO · Principal Safety Engineer

Ben Twombly is the founder of Critical Systems Analysis and the principal engineer behind every CSA program. He holds an FS Engineer certification from TÜV Rheinland and the Industrial Functional Safety Professional (IFSP) certification.

Before founding CSA in May 2023, Ben spent six years as a Senior Safety Engineer at TÜV Rheinland, preparing clients for safety assessments across a wide range of safety-critical systems. He earned his degree in robotics from the Colorado School of Mines. At CSA he works with robotics companies, autonomous vehicle manufacturers, industrial machinery firms, battery management system developers, and rail transit organizations across the U.S., Canada, and Europe.

FS Engineer · Certified by TÜV Rheinland IFSP · Industrial Functional Safety Professional B.S. Robotics · Colorado School of Mines
Related courses

More in Rail.

Ready when your team is

Enroll your team.

Secure seats now, or talk to an instructor about a private cohort for your engineers.