Concerning the European Rail Traffic Management System (ERTMS), the company has the comprehensive solution Auriga: ERTMS Level 1 and Level 2. In this edition the ATO (Automatic Train Operation) solution will be reported with a degree of automation GoA2 based in specifications of ERTMS interoperability. The system is divided in two parts, track ATO, for the automatic regulation of the traffic; and boarded ATO, It includes improvements in performance, expenses and user experience. In the fair it will be disclosed the product and service family of CAF Signalling. Among them, the electronic interlocking QUASAR S3e and the solution NAOS for Integrated Control and Multifunctional Centres, along with the most recent development underway for the interoperable CBTC, resulting from the agreement between ETS and Euskotren. The solution will be installed at the end of 2019 on L3 of the Bilbao Metropolitan Railway.