D5.2 – Specifications CCS for Group 2

Group 2 Regional Lines (G2 Lines) are lines or network of lines that are not functionally/operationally connected with the mainline network (ER JU Multi Annual Work Programme and Article 1.3 (c) of the EU Interoperability Directive [8]). Group 2 regional rail is operated by passenger and/or freight services that do not enter mainline infrastructure.
G2 Lines approach is completely different from the one considered in Group 1 Regional lines (G2 Lines). While G1 lines are required to ensure interoperability within the European network, G2 lines being free from such requirement allow for a radical new approach which will be described in the document and can be summarized by the following key concepts:
1. Decouple the railway application from the telecommunication technologies.
2. Keep free the system architecture as much as possible avoiding constraining future developments.
3. Data sharing as the mean to ensure standardization and competition.
In this report, we will analyse how the above concepts match European initiatives on Satellite communications and Federated Data Spaces.
Moreover, G2 lines, apart few exceptions, are characterized by very low traffic and consequently can accommodate solutions based on not expensive technologies thanks to the less demanding operations.