Railways – From A to Z

ERTMS / ETCS

CBTC – Communication-based train control

SIG-4

en

Objectives

Master the functional features of systems under operation with CBTC technologies.
Understand the technical aspects of CBTC implementation.
Become familiar and knowledgeable in safety/security issues related to CBTC.

Target audience

Engineering and technical staff in charge of development, manufacturing and implementation of a CBTC System - as well as operating and maintenance staff.

Signalling-Urban transport-Metro-Tramway-CBTC training

April 22-23, 2026
October 28-29, 2026

2 days

Paris or Online

1395

1395 €

Content

DAY 1: CBTC background & Principles
- Why CBTC?
- - Risks to be avoided
  - Classic signaling: Principles – Route management – Space between trains – Train Detection – Signals
  - Recurring issues: Space between trains – Maintenance costs – Operation flexibility
- How CBTC works: Principles - Architecture & Configuration Data - Fixed block & Moving block
- System operational background: Signaling - Rolling Stock - Operators and man-machine interface - Traction logics - Platform-track interface protection device
- Grades of Automation (GoA 1, 2, 3 & 4) - Degraded modes of operation procedures
- CBTC functionalities
- - Zone controller
  - Movement Authority Limits (MAL)
  - Train location & Energy consumption
  - Door opening/closing
  - Signaling

DAY 2: CBTC Safety/Security challenges
- Potential Risks
- Safety Integrity Levels (SIL)
- SIL 4 and its implications: Standards & Development Process
- SIL4 Complexity Management
- - Asynchronism
  - Loss of communications
  - Data transmission: Vital & non-vital
  - Examples of SIL4 typical problems
- CBTC System examples: CBTC metro lines & Providers (Alstom, Siemens)
- Operators’ strategies: Interchangeability /Interoperability or “Turnkey CBTC”- Examples of Paris Metro (RATP) & New York City Transit
- Recurring difficulties: Interaction with existing signalling system – Migration to CBTC
- Short Wrap-up: Advantages, Risks & SIL 4

NoMAD