Application of colored stochastic Petri nets in rapid simulation of airport operation environment

With the increase of air traffic volume in recent years, the airport operation environment has been in complex conditions, which may lead to the occurrence of scratches or collisions between aircrafts in the active area of the airport. To solve this problem, the airport is regarded as a discrete system, the flight activity area is divided with the idea of modularization, and the topological relation model is constructed by the divided modules. Then the topological relation model is simulated and designed quickly using simulation software. Also, the taxiing path of the aircraft is analyzed, and the potential conflicts between the aircrafts are found and controlled. Based on this practical requirement, this paper aims to construct a model of the activity area of the airport by using a colored stochastic Petri net. Through the simulation function and control library of CPN Tools, the aircraft can run on the constructed traffic network model and support conflict control. The simulation results show that the airport activity area aligns with the actual operating environment. Compared with the activity area model without a control base, the control base plays a role in conflict control of aircraft on the traffic network, and the aircraft can take off and land smoothly in the airport.