“…Two international standards for railway vehicles issued in recent years EN 14067-6 (2010) and TSI HS RST (2008), have specific sections on cross-wind safety. The approach to evaluating the cross-wind stability of a railway vehicle described in these two standards, but also in a number of national standards, is based both on the determination of vehicle aerodynamic coefficients using (preferably) wind tunnel tests or CFD calculations, and on the evaluation of the maximum cross-wind speeds at which a vehicle reaches its safety limits, that is the Characteristic Wind Curves (Cheli et al, 2004(Cheli et al, , 2012Carrarini, 2007;Sesma et al, 2012;Baker, 2010b;Ding et al, 2008;Diedrichs, 2003;Tomasini and Cheli, 2013).…”