This paper presents the development of 4-Dimensional Trajectory (4DT) Planning, Negotiation and Validation (4-PNV) functionalities based on multi-objective 4DT optimization algorithms. These novel 4DT management capabilities are conceived for integration in airborne and ground-based Decision Support System (DSS). The ground-based 4-PNV DSS interacts with Next Generation Flight Management Systems (NG-FMS) on board manned and unmanned aircraft, by means of data links. Suitable models are implemented for aircraft dynamics, engine thrust, fuel consumption and pollutant emissions. Sources of real-world aeronautical weather data are also adopted. These elements have been implemented and assessed in the multi-objective 4DT optimisation algorithms of ground-based 4-PNV DSS and NG-FMS.
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