With a reliable radio link that is able to transfer data directly between trains, an additional communication channel is made available that is able to handle time-critical events much better than a centralized system. Unexpected events or potentially dangerous situations on the track can be communicated directly to following or approaching trains. This allows (i) to take immediate action to mitigate potentially dangerous situations, and (ii) can increase the capacity of a rail track by effectively reducing the necessary safety distance between trains.
In this workpackage a reliable and low-latency V2V radio communication will be devised that allows an additional and direct communication channel between trains. This is a valuable supplement to the existing land-side communications with a centralized train control system. The developed radio modules will be integrated into a gateway (GW) that can be connected to the Train Control and Monitoring System. The gateways then can establish a trusted and secure communication channel between the trains and the exchange of data like position, speed, or critical events along the track is facilitated.
Another aspect of reliable and low-latency V2V communication addresses the composition of train sets. Today, trains sets are joined together by pneumatic, mechanical and electrical connections that have to be made manually. The shunting and coupling operations with trains pose high safety risks and are a significant cost factor, expending time and personnel. Furthermore, only compatible trains can be coupled with each other which puts limits on interoperability because the compositions to be joined must be, for instance, of the same model.