Abstract: A navigation system is configured to identify a current location and a destination location of an airborne platform, identify a current cell in which the current location is located; identify a plurality of current neighbors associated with the current cell; calculate, for a first path from the current location to the destination location through a first current neighbor of the plurality of current neighbors, a first value of an objective function, the first value depending on whether the first path includes a predetermined navigational node; calculate, for a second path from the current location to the destination location through a second current neighbor of the plurality of current neighbors, a second value of the objective function depending on whether the second path includes a predetermined navigational node; and output the current neighbor and/or path that satisfies an objective condition based on the values.

Abstract: A system for an airborne platform includes a display device and a processing circuit. The processing circuit is configured to receive avoidance configuration information having a plurality of avoidance categories and severity levels. The processing circuit is further configured to receive flight plan information relating to a flight route from a starting location to an ending location, an avoidance area, an indication of an avoidance category corresponding to the avoidance area, and an indication of a severity level. The processing circuit is further configured to calculate a normalized cost associated with the flight route and compare the normalized cost to a threshold value. The processing circuit is further configured to identify the avoidance area as non-traversable when the normalized cost exceeds the threshold value. The processing circuit is further configured to generate a display providing a visual representation of the normalized cost, the flight route, and the avoidance area.