Patent ID: 7957853

Claim:
A method to indicate an actual or potential Temporary Flight Restriction (TFR) zone violation and indicate measures to avoid or exit a TFR zone, comprising: receiving TFR zone information and an aircraft's position information, ground track and ground speed; processing the aircraft's position information, ground track and ground speed to determine the aircraft's current heading; determining whether there is a TFR zone violation based on the aircraft's current position, whether the aircraft's current heading results in a potential TFR violation based on the aircraft's current position and heading and whether the aircraft is in the vicinity of a TFR zone based on the aircraft's current position and heading; providing indicators of a TFR zone violation, potential TFR zone violation when the aircraft is at a predetermined distance from the TFR zone or if the aircraft will intersect the TFR zone in a predetermined amount of time, no TFR zone violation or absence of a TFR zone in the vicinity; and if a TFR zone violation, or possible TFR zone violation or presence of a TFR zone in the vicinity are determined, providing indicators of measures to exit the TFR zone or change the aircraft's current heading to avoid the TFR zone.