The present invention provides a system and method for simulating a security checkpoint. While the present invention is presented in the context of an airport, the simulation may be easily adapted for any type of security checkpoint at any location. Specifically, the present invention provides a model that evaluates the time costs of security measures related to checking-in baggage, screening passengers, and screening the passengers' carry-ons. The model is robust to allow changes in security configurations, schemes, devices, and personnel. In one embodiment, the present invention further includes a security demand model.