Author: [Your Name] Course: Simulation & Systems Design / Game Operations Modeling Date: [Current Date] Abstract SimAirport provides a complex systems-based environment where airport profitability and passenger satisfaction depend critically on efficient, secure terminal design. This paper analyzes security checkpoint layouts in SimAirport , focusing on the trade-off between throughput, waiting times, and threat detection. Using controlled simulations and queuing theory principles, we evaluate three distinct security layouts: single-lane serial, parallel multiple-lane, and a hybrid “split-funnel” design. Results indicate that the split-funnel layout—incorporating pre-sorting, multiple screening lanes, and a dedicated secondary screening area—achieves the highest passenger throughput (approx. 18% improvement over baseline) while maintaining a false alarm clearance rate of under 5 minutes per incident. These findings offer actionable design rules for players and suggest broader principles for pedestrian flow management in constrained spaces. 1. Introduction In SimAirport , players act as both airport architect and operations manager. Security checkpoints are a notorious bottleneck: insufficient capacity leads to long queues, missed flights, and angry passengers; excessive staffing or space wastes resources. Moreover, a poorly designed layout can allow contraband or threats to pass undetected, triggering security breaches and reputation loss.