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Article | REF: TRP3213 V1

CBTC Systems

Author: Michel CARNOT

Publication date: February 10, 2023

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2. CBTC system principles

2.1 Reminder of signalling system functions

The functions of the signalling system are classically grouped into three subsets:

  • traffic organization, supervision and regulation;

  • interlocking functions ;

  • speed control and regulation functions.

  • Traffic organization, supervision and regulation

    These functions enable operators to run the line or metro network from the supervision center. Traffic is organized – off-line preparation of the timetable to be run –, then supervised in real time to adapt to the conditions encountered (passenger incidents, breakdowns, increased demand for transport...

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