When is it acceptable to proceed past a red light on the airfield?

Answer: B — Only when directed by air traffic control

Proceeding past a red light on the airfield is only acceptable when directed by air traffic control. This rule is in place to ensure safety and maintain the orderly flow of traffic within the airfield environment, where numerous aircraft and vehicles are operating simultaneously. By requiring a directive from air traffic control, it minimizes the risk of accidents and ensures that all personnel are aware of movement instructions. Air traffic controllers have the complete situational awareness to make informed decisions based on real-time conditions, including the presence of other aircraft and vehicles. In any other scenario, such as being in a rush, claiming there are no other vehicles present, or simply feeling it is safe to proceed, could lead to dangerous situations where not all factors have been considered. Safety protocols prioritize communication and authority directives to prevent mishaps in these highly regulated environments.