New perspectives for High-Speed rolling stock in Italy

The paper aims at presenting some trends and perspectives that are being investigated, in view of enhancing the technological level of the future rolling stock for the Italian high speed system, taking into account the specificity of the Italian network, where high speed trains may be required to run also on curved track and hence need to find a compromise between stability at high speed and curving performances. A second issue characterizing the Italian scenario is that on account of the land’s orographic structure, a comparatively large percentage of the line develops in tunnels, which implies a high sensitivity to aerodynamic issues. Therefore, active control is proposed also to increase vehicle resistance to the action of crosswinds.