ProRail, together with Network Rail and SNCF, is currently looking at the possibility of using a ‘hybrid ERTMS Level 3’ version on the track. Live testing is expected to start on a track owned by Network Rail in England this October. If the testing with ‘hybrid ERTMS level 3’ is successful, it is anticipated that the costs for the implementation will be lower than with the roll-out of ERTMS Level 2. Furthermore, bigger capacity gains can be made.