The whole package is called: ERTMS (European Rail Traffic Management System) and that is split between ETCS and GSM-R-data-communication. The GSM-R is only in level 2 and is there so the train can get its information from the RBC (Radio Block Center). On the route we're using "Dual Signaling" which means there 2 safety systems on the line.
Today I've actually found out that the system simulated isn't that complex and it has a few bugs so I'm good. thanks