A constraint programming model with time uncertainty for cooperative flight departures

Kết quả hình ảnh cho A constraint programming model for cooperative flight departures images

The lack of a proper integration of strategic Air Traffic Management decision support tools with tactical Air Traffic Control interventions usually generates a negative impact on the Reference Business Trajectory adherence, and in consequence affects the potential of the Trajectory-Based Operations framework. In this paper, a new mechanism relaying on Reference Business Trajectories as a source of data to reduce the amount of Air Traffic Controller interventions at the tactical level while preserving Air Traffic Flow Management planned operations is presented. The proposed methodology takes advantage of Constraint Programming and fosters adherence of Airspace User’s trajectory preferences by identifying tight interdependencies between trajectories and introducing a new mechanism to improve the aircraft separation at concurrence events considering time uncertainty. The underlying philosophy is to capitalize present degrees of freedom between layered Air Traffic Management planning tools, when sequencing departures at the airports by considering the benefits of small time stamp changes in the assigned Calculated Take-Off Time departures and to enhance Trajectory-Based Operations concepts.

The main goal of the presented model is to illustrate the effect of uncertainty on the concurrence event time window and to demonstrate how easily the mitigation model can take into account slight slot time shifts on the trajectory timestamps. Until the improvement of real-time information systems, future research could be carried out to understand the time window of look-ahead time in which the presented tools are the most effective.

Collected and summarized from the source below by Minh Pham  https://db.vista.gov.vn:2095/science/article/pii/S0968090X18312890