• 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