The ERTMS Users Group is a European Economic Interest Group (EEIG) constituted by the Infrastructure Managers from Belgium, Denmark, France, Germany, Holland, Italy, Norway, Spain, Sweden, Switzerland and the United Kingdom. This group, founded in the middle of the nineties, working in tight cooperation with the European Signaling companies, grouped in UNISIG, has played a fundamental role in the consolidation of the ERTMS technical specification and its upgrading to Baseline 3, covering all requirements of the conventional railway system.

In this communication, two Managing Directors of the group show the complete process going from the proof of concept of ERTMS to the specification of ERTMS Baseline 3. This Baseline will be the basis for the deployment on the interoperable European railway network. Along this communication, the two managing directors will address the critical points encountered along the consolidation and the features envisaged along the enhancement of ERTMS with the Baseline 3 new functionalities.