Which term refers to a restricted air route of travel specified for use by friendly aircraft to prevent friendly fire?

• A. BDZ Base defense zone
• B. Air Corridor
• C. HIDACZ high-density airspace control zone
• D. ROA Restricted operations area

Answer: (B)

Air corridors are predefined, restricted routes through which friendly aircraft are expected or required to fly to minimize the risk of fratricide and to keep air defense coordination clear. This is exactly the idea behind a restricted air route of travel for friendly aircraft—a protected path that helps deconflict movements and prevent friendly fire. Other options describe areas or zones around a base or high-density airspace management, not a specific travel route: a base defense zone focuses on defending a facility, a HIDACZ zones concentrate many air-defense assets in a volume of airspace, and a restricted operations area covers broader flight restrictions rather than a defined corridor for movement.