TRANSIT is firmly based on the results from past EU projects Acoutrain and Roll2Rail and relies on the inputs from EU project Fine1 and Fine2 to set the next steps towards virtual certification. Furthermore, a key aspect to maximize the visibility, impact and acceptance of the TRANSIT results is the interaction with relevant stakeholders such as the steering committee of the Shift2Rail Cross-cutting Activity (CCA) Noise, the EU Agency for Railways (ERA) and TC256/WG3 of the European Committee for Standardization (CEN).