# Commission Decision of 7 November 2006 concerning a technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European high speed rail system and modifying Annex A to Decision 2006/679/EC concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European conventional rail system (notified under document number C(2006) 5211) (Text with EEA relevance) (2006/860/EC), Division 2.1: General

Extent: E+W+S+N.I.

The Control-Command Subsystem is defined as that set of functions and their implementation, which allow the safe movement of trains.
The TSI Control-Command defines the essential requirements for those parts of the Control-Command Subsystem that have relevance to interoperability, and therefore are subject to EC declaration of verification.
The features of the Control-Command Subsystem that are related to the interoperability of the trans-European high-speed rail system are determined by:
1.. The FUNCTIONS that are essential for the safe control of the railway traffic, and that are essential for the operation, including those required under degraded modes.
2.. The INTERFACES.
3.. The level of PERFORMANCE required to meet the essential requirements.
The specification of these functions, interfaces and performance requirements are provided in Chapter 4 (Characterisation of the Subsystem) where supporting standards are referenced.

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Source: https://www.legislation.gov.uk/eudn/2006/860/annex/division/2/division/2.1 (the official version)
Page: https://openlegislation.uk/eu-decision-2006-860/annex/division-2/division-2.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.