A Hybrid Model for the Impact of COVID-19 Prevention Measures on the Sustainable Development of the Aviation System

Algorithm 1

Specific implementation process of agent-based model.

	Step 1: create an agent-based model by adding agents (passengers).
	(a) Susceptible
	(b) Asymptomatic infection
	(c) Infection rules: “Agent-to-agent interaction and rules”
	Step 2: create discrete event simulation based on the Mianyang Airport entrance process.
	Step 3: configure the passenger flow and add agents (passengers) to the DES.
	Step 4: for each agent, an agent is in the infection radius, according to “Agent-to-agent interaction and rules” to infection; otherwise, keep the state susceptible.
	Step 5: determine the asymptomatic infection at Mianyang Airport.
	Step 6: repeat steps 3–5 until the simulation timer runs out.