Which general rule applies to all airfield vehicle movements to ensure safety?

• A. Follow signals, signs, and ATC instructions to prevent incidents.
• B. Only follow ATC instructions when visibility allows.
• C. Only follow signage when there is no ATC contact.
• D. Always proceed if there is no traffic.

Answer: (A)

On the airfield, moving a vehicle requires clear clearance from signals, signs, or ATC to keep everything coordinated and safe. Signals and signs give you the fixed, local guidance on where to go, whether to stop, and where you must yield, while ATC provides real-time directions to avoid conflicts with aircraft and other traffic. This universal rule matters because visibility, radio coverage, and human error can create gaps that signs or instructions alone help close. You must follow ATC instructions even if you think there’s no traffic, and you should heed signs and signals whether or not you’re in direct contact with ATC. Relying on sight alone or assuming no traffic can lead to runway incursions or collisions, since unseen aircraft or personnel could be present.