A method performed by a system 20 located on an ownship 18 when the ownship is on the ground, the method comprising: at a processing device 24, a. receiving from a communication device 28 information transmitted from a ground traffic vehicle (step 68); b. receiving ownship information from avionics equipment c. determining a minimum distance between the ownship and the ground vehicle based on position, current speed and heading information for both vehicles; received at steps a. and b.; d. determining if a potential collision conditions exists based on the determined minimum distance (step 72); e. estimating a full-stop location of the ownship based on the received ownship information and one or more predefined constants stored in a memory device 30 if the potential collision condition is determined to exist; f. determining the distance the ground traffic vehicle will pass the ownship after the estimated full-stop location of the ownship based on the received information for both vehicles and g. generating a potential collision alert if the determined distance is less than a predefined safe distance value; and at an exterior lighting device 32, providing illumination towards the ground traffic vehicle after generation of the potential collision alert (step 82). at a processing device 24, a. receiving from a communication device 28 information transmitted from a ground traffic vehicle (step 68); b. receiving ownship information from avionics equipment c. determining a minimum distance between the ownship and the ground vehicle based on position, current speed and heading information for both vehicles; received at steps a. and b.; d. determining if a potential collision conditions exists based on the determined minimum distance (step 72); e. estimating a full-stop location of the ownship based on the received ownship information and one or more predefined constants stored in a memory device 30 if the potential collision condition is determined to exist; f. determining the distance the ground traffic vehicle will pass the ownship after the estimated full-stop location of the ownship based on the received information for both vehicles and g. generating a potential collision alert if the determined distance is less than a predefined safe distance value; and a. receiving from a communication device 28 information transmitted from a ground traffic vehicle (step 68); b. receiving ownship information from avionics equipment c. determining a minimum distance between the ownship and the ground vehicle based on position, current speed and heading information for both vehicles; received at steps a. and b.; d. determining if a potential collision conditions exists based on the determined minimum distance (step 72); e. estimating a full-stop location of the ownship based on the received ownship information and one or more predefined constants stored in a memory device 30 if the potential collision condition is determined to exist; f. determining the distance the ground traffic vehicle will pass the ownship after the estimated full-stop location of the ownship based on the received information for both vehicles and g. generating a potential collision alert if the determined distance is less than a predefined safe distance value; and at an exterior lighting device 32, providing illumination towards the ground traffic vehicle after generation of the potential collision alert (step 82).