Spain, Nov. 25 -- Alstom's innovative signalling technology is now powering Adif's just-started tests of a new ERTMS application, specifically designed for secondary railway lines with low traffic density. The trials have begun this November on the metre-gauge section between La Asuncion Universidad (Leon) and Guardo, part of the Leon-Bilbao line.Among the main innovations of the project is the use of satellite positioning and public telecommunications networks in ERTMS Level 2. The project also includes ERTMS Level 1 trials which, although they do not involve the incorporation of new technologies as in Level 2, will test new operational scenarios such as level crossing management.System testing will be completed in the first half of 2026. ...