GASP Simulation of Terminal Air Traffic System

The objective of this study was to develop a simulation model to effectively assist in planning air traffic control operations in the terminal area. The analysis applied unique concepts employing a discrete events simulation philosophy through the proven simulation language known as GASP. In pursuing this objective, the study included pertinent factors associated with actual air traffic operations such as interaction between approaches, aircraft flight characteristics, and landings and takeoffs. An attempt was made to indicate the applicability of the derived solution in such analyses as runway evaluation, system component evaluations, landing sequencing policies, and sensitivity studies. The modeling philosophy was that aircraft were ‘flown‘ through the system by indexing them through three nodes—the holding stack, a point on final approach, and touchdown. The system operated on a time basis causing the arrival of an aircraft at a node only at the proper time, and assuring proper aircraft separation throughout the system in time.