Research Article

Towards Sophisticated Air Traffic Control System Using Formal Methods

Box 23

Aircraft_moving_Alert_OFF
ANYaircraftloc
WHEREgrd1: aircraft ∈ AIRCRAFTSgrd2: loc ∈ LOCATIONSgrd3: (∀a·aAIRCRAFTS ⇒ distance(locationof(a) ↦ loc) ≥ Min_distance) ∧ (Security property1) ∧ (Security property 2) ∧ 
THENact1: Alert ≔ FALSEact2: locationof(aircraft) ≔ loc
END