1.LIST OF SUBSYSTEMSU.K.
For the purposes of this Directive, the system constituting the trans-European conventional rail system may be broken down into the following two subsystems, either:
(a)
structural areas:
infrastructure;
energy;
control and command and signalling;
traffic operation and management;
rolling stock; or
(b)
operational areas:
maintenance;
telematics applications for passenger and freight services.