Patent ID: 7739047

Claim:
A method for evaluating licitness of the situation of a craft on the surface of an airport including: flow constraint zones, the craft being provided with a geographical locating equipment, the method comprising the steps of: receiving by a computer location information of the craft from the geographical locating equipment; modelling, by operation of the computer, a first licitness cost surface covering a surface of the airport where the craft is deployed, the first licitness cost surface being defined by quantities assigned to its points, which quantities are representative of their memberships in flow constraint zones and of the severity in relation to the craft, of the flow constraints affecting the flow constraint zones concerned, modelling, by operation of the computer, a second second licitness cost surface covering the first licitness cost surface, related to the craft and defined by quantities assigned to its points, which quantities are representative of their memberships in a girth zone covering a neighbourhood of the current position of the craft, and calculating, by operation of the computer, a score evaluating the significance of the risk of violation of a flow constraint incurred by the craft on the basis of a cross-correlation function of the two licitness cost surfaces referred to one and the same benchmark.