Paragraph 2.3 F1

Safety

• The control-command and signalling installations and procedures used must enable trains to travel with a level of safety which corresponds to the objectives set for the network. The control-command and signalling systems should continue to provide for safe passage of trains permitted to run under degraded conditions.

Technical compatibility

• All new infrastructure and all new rolling stock manufactured or developed after adoption of compatible control-command and signalling systems must be tailored to the use of those systems.

• The control-command and signalling equipment installed in the train drivers’ cabs must permit normal operation, under the specified conditions, throughout the rail system.