Abstract: A computer processing system for optimising a sequence of aircraft at an airport is disclosed. The system comprises a module configured to receive flight plan data associated with a plurality of journeys between an origin and destination wherein each journey is associated with a different aircraft and wherein the flight plan data comprises flight schedule data associated with the plurality of different journeys; a second module coupled to the first module wherein the second module is configured to determine an aircraft taxi time, EXOT, based on the flight plan data; a third module coupled to the first module and the second module wherein the third module is configured to determine a target take-off time, TTOT, associated with each of the plurality of different journeys wherein the target take-off time is determined based on the taxi time, EXOT, and the flight plan data.

Abstract: A computer processing system for optimising a sequence of aircraft at an airport is disclosed. The system comprises a module (201) configured to receive flight plan data associated with a plurality of journeys between an origin and destination wherein each journey is associated with a different aircraft and wherein the flight plan data comprises flight schedule data associated with the plurality of different journeys; a second module (205) coupled to the first module wherein the second module is configured to determine an aircraft taxi time, EXOT, based on the flight plan data; a third module (203) coupled to the first module (201) and the second module (205) wherein the third module (203) is configured to determine a target take-off time, TTOT, associated with each of the plurality of different journeys wherein the target take-off time is determined based on the taxi time, EXOT, and the flight plan data.