"Future aircraft programs require the development of new aeronautical technologies and solutions for which confidence on their applicability have to be gathered through ad hoc demonstrators. In this context new Mission and Trajectory Management (MTM) for regional aircraft is recognised to give a significant contribution to reduce environmental impact in term of noise emissions and fuel consumption reduction. New MTM functionalities will be defined through the use of flight simulators for new optimised missions and trajectory evaluation of typical missions taking into account new air traffic management concepts. The SICTA’s consolidated experience in defining the most suitable operational technical solutions in the ATM world will be used to investigate methods supporting change in the trajectories and techniques for providing air traffic management in a GRA simulation environment. Current and future ATM requirements and data will be collected as well as the available regulations and procedures, safety requirements and future expected ATM features. The new defined optimised trajectories require a revision of the ATM rules to be used, in terms of airspace routes, arrival and departures procedure. Special attention will be dedicated to the relevant world wide activities in the field of ATM innovation, to keep in line with possible innovations introduced by SESAR Research and to build on its findings. The evaluation of the MTM requires trials to be performed on the GRA simulation platform. The trials to be performed on the GRA simulation platform will rely on appropriate simulation methodology and the GRA simulation platform will use hypothetical fleet assumptions, consider aircraft operation and regulatory and certification issues, flight safety, air traffic and regional airline requirements. All these elements will define the ATM scenario models to be integrated into the GRA simulator, represented by optimized route which meets the operator’s economic criteria."