Abstract: A method for generating a training data set to train an artificial intelligence module for assisting air traffic control, including the steps of providing a first layer of historical flight data comprising trajectory data of aircraft, the trajectory data comprising track data, flight level data or speed data along time steps (t) of the trajectory, detecting a change in the trajectory data, the change occurring at a time step t2 along the trajectory, in either track data, flight level data or speed data of at least an aircraft, labelling, by a labelling module, in a time or distance t1 located before t2 in the trajectory of the aircraft with the detected change such that the detected change is configured to correspond with an instruction given by an air traffic controller to the aircraft, the labelled historical flight data generating a training data set for the artificial intelligence module.