In Railway, business skills are related to CAE design analysis and the sizing of vehicle bodies. In the field of crash simulations, SSM have carried out innovative activities developed on structural revamping projects, in order to obtain numeric verification of compliancy with regulatory requirements on passive safety. SSM in this field, from the experience gained in the automotive area, has developed original methods of design and calculation, supporting research and development activities. The activities have been developed by modelling entire boxes equipped with couplers, buffers and shock absorbers. Subsequently, SSM has developed specific calculation methodologies which allow to investigate the biomechanical behaviour of passengers involved in rail crash scenarios.