Signaling: Satellite provides authentication of train location

An air of transformation and innovation is sweeping rail department, despite the present Coronavirus pandemic. The urge for modal change towards more reliable transport remains significant.  The European Commission just made rail its primary means of transportation, aiming for ‘net zero’ carbon productions in the next 30 years. It is evident from its strategy to make 2021 as the European Union’s ‘Year of rail.’

The roll-out of ERTMS remains one of its crucial strategies in accomplishing of macro-level ambitions of cutting off expenses as well as making adjustments that are safer for rail services. Still and all, the operation has deliberate advancement in the previous years. There is also a strong urge to pick up the pace on the rate of implementation. 

One mechanism that will speed up the whole process of implementation is to get the methods of making competent prices of ERTMS. More dialogues have taken place concerning the extent of using satellite positioning to avoid the urge for costly and fixed infrastructure, especially in the regional lines. 

The primary strategy here is to put together ERTMS with the positioning equipment provided by the 2 Global Navigation Satellite Systems, which are; GPS and Galileo. So far, it has shown the difficulties of apprehending the working ability of its combination. The main reason being GNSS is a service given by companies that are found outside control of the railway region. 

Ultimately, the incorporation would need the formation of a ‘bridge’ between the worlds of GNSS and the railway. The operation has been taking place for several years to term a common perceptive as well as language, agree on the practical necessities, and also, provision of responsibilities to assure security between the two parties. 

The ERSAT-Galileo Game Changer novelty is a representation of the most recent stride in the process. The primary central obligation is to make positive adjustments to the whole economic sustainability of ERTMS, and specifically to make its incentive introduction on limited and provincial railways. The operation will entail a combination of ERTMS with GNSS and the multi-bearer unrestricted telecom services. 

To make the assimilation of GNSS with ERTMS possible, the railway community made a research approach based on the implicit balize idea, and currently, it is about to mature. It will help reduce expenses since the implicit balise does not need any substantial involvement with the infrastructure itself. 

In the meantime, additional developments are taking place. The European Space Agency has supported the introduction of European Geostationary Navigation Overlay Service to the GNSS.