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A Robust Optimisation Formulation for Post-departure Rerouting Problem

In this paper, a robust optimisation approach for air traffic flow management problem involving rerouting of flights under uncertainty is explored. During disruptions in typical aircraft operations, an inherent uncertainty in the capacity of airspace resources becomes evident. Therefore, when flights are en-route, stakeholders are required to arrive at a decision of assigning an alternate route so as to support the continued aircraft operations. Considering that stakeholders of the commercial aviation industry maintain individual interests other than the collective interest of safe operation of flights, a robust optimisation model is developed as a decision support system for rerouting of flights integrating these individual interests. The key results obtained from the illustrative case study conducted show that the route assignment varies significantly with the level of uncertainty. Such variations present important insights to the stakeholders in terms of resource capacity and cost, among others.