These are the TrioTRAIN high level objectives:

• To foster cross-acceptance of rail vehicle authorisation through standardised processes for conformity proof; becoming less dependant on ‘local’ testing customs thus allowing for faster evaluation of minor technical changes of the vehicle;

• To close “open points” in the Technical Specifications for Interoperability (TSIs);

• To reduce cost and time effort allowing for general ease into the network approval process in Europe introducing and/or exploring the use of:

• Virtual homologation (replacing assessment by testing through assessment by simulation),

• Cross-border certification transfer of testing results in Europe,

• Virtual extension of homologation (for minor changes to existing homologated solutions).

The TrioTRAIN concept comprises 3 related projects: AeroTRAIN, DynoTRAIN and PantoTRAIN. Aerodynamics (AeroTRAIN), Railway Dynamics and Track Interaction (DynoTRAIN) and Pantograph and Catenary interaction (PantoTRAIN) are the technical areas that have been identified as most beneficial for improved processes.
Additionally, all these technical areas bear great synergetic potentials when it comes to network approval processes, i.e. they can learn from common experience.

current state-of-affairs, the only sensible way for transposition of test results is via computer simulation and virtual homologation, which will be a core skill to be developed under TrioTRAIN.