Division 1 List of subsystems

For the purposes of this Directive, the system constituting the Union rail system may be broken down into the following subsystems, either:

1. (a)

   structural areas:

   • infrastructure,

   • energy,

   • trackside control-command and signalling,

   • on-board control-command and signalling,

   • rolling stock; or

2. (b)

   functional areas:

   • operation and traffic management,

   • maintenance,

   • telematics applications for passenger and freight services.