The INM model utilizes flight track information, aircraft fleet mix, standard and user-defined aircraft profiles, and terrain. It can also process US census population data and flight schedules from the ___________________

• A. Official Airline Guide (OAG)
• B. Aviation Timetable Database
• C. Flight Schedule Index
• D. Air Travel Directory

Answer: (A)

To build realistic flight schedules for the INM model, you need an authoritative source of timetable data. The Official Airline Guide provides comprehensive airline schedules, route networks, frequencies, and aircraft-type information that INM can ingest to construct accurate flight tracks and align them with the fleet profiles. Because OAG is regularly updated, it captures seasonal changes and the full scope of scheduled operations, which enhances the model’s fidelity.

Other sources exist, but they are less standardized or widely used in this context, making them less reliable for consistent INM inputs.