This is a particular priority – as another innovation on the new core network is that there are tougher obligations for transport systems to "join up", i.e. to invest in meeting mainly existing EU standards, for example on the common rail signalling system ERTMS.
See tähendab, et tuleb teha investeeringuid, et täita (peamiselt) olemasolevaid ELi standardeid, mis käsitlevad näiteks ERTMS-i ühiseid raudtee signaalimissüsteeme.