then if effective interoperability proves to achieve must give in to the change over to the et it is not healthy for train between paris and example to have less than seven different ss
Then, if effective interoperability proves impossible to achieve, maximum encouragement must be given to the changeover to the European ETCS, as it is not healthy for a Thalys train running between Paris and Amsterdam, for example, to have no less than seven different safety systems.
Then, if effective interoperability proves to achieve, must given to the changeover to the ETCS, it is not healthy for train between Paris and example, to have less than seven different safety