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The STT crowd forecast models TSA checkpoint wait times using scheduled departure seat counts and a time-distributed passenger arrival curve. Each departure's passengers are spread across a 4-hour pre-departure window, with the peak at 2 hours before scheduled departure. Severity ratings (Low, Moderate, High, Severe) are based on 30-minute passenger volume thresholds calibrated for STT.

Flight data is sourced from national airline schedule databases and includes regional carriers, commuter operators, and charter operations in addition to mainline airlines serving STT, STX, and EIS.