Patent ID: 8599045

Claim:
A method comprising: at an installation aircraft performing one of an approach to landing, go-around, a takeoff operation or a taxi operation at an airport, a) determining if at least one of an aircraft or vehicle in a predefined vicinity of the airport is a conflict based on information about the installation aircraft, information received from the at least one aircraft or vehicle, and a predefined conflict envelope; b) generating and outputting a conflict alert if the installation aircraft determines that the at least one aircraft or vehicle is a conflict; c) repeating a) after a predefined delay; d) generating a clear-of-conflict advisory if the at least one aircraft or vehicle previously determined to be conflicting is determined to no longer be conflicting based on updated information received from the at least one aircraft or vehicle, and outputting the clear-of-conflict advisory, and e) periodically transmitting at least one of position and motion information from the installation aircraft, wherein the periodic transmission is performed at a power level capable of reaching environs of the airport.