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Airport security is an integral part of the national transportation infrastructure and a critical aspect of airport operations globally. In order to reduce the length of stay in the terminal, it is necessary to optimize the security services. I take the O’Hare Airport as the research object. Firstly, I build a queuing theory model to calculate the time spent on each process in Airport Security Checkpoint and define the efficiency of the security system. Then, I analyze the flow of passengers through a security check point baes on the model, and I find that one of the bottlenecks is that passengers are waiting too long for packaging baggage. The other one is the waste of resources because the time passengers through the mm wave body scanner is greater than that the luggage through the X-ray machine.

Optimization of the Passenger Throughput at an Airport Security Checkpoint Based on Queuing Theory