Current state of secondary railway lines Fixed signalling blocksControl logic dispersed along the routesLow integration of its individual partsDisparate technical solutions even within one single line DIVISION OF THE INTERLOCKING SYSTEMS Station interlocking system Track interlocking system Level crossing interlocking system Speed limit due to the number of unprotected crossingsLow usability of these facilities for other purposesToo much dependence on the human factorHigh cost of implementation 0 % Přejezdů pouze s výstražnými kříži Railway 4.0 Concept