When shall advisory control be utilized?

• A. When weather density is low and operations are VFR
• B. Only during night operations
• C. When weather is VMC only
• D. When traffic density requires a higher degree of control, for safety of flight

Answer: (D)

Advisory control is used when traffic density in the airspace requires more coordination to keep aircraft safely separated. It’s about providing guidance and situational awareness to pilots to prevent conflicts when there are enough aircraft to raise the risk of separation issues, so controllers offer advisories on routes, altitudes, and speeds to help pilots self-separate and to sequence traffic safely. This decision is driven by how busy the airspace is, not by weather conditions or whether it’s day or night. So, when the workload from surrounding traffic demands a higher degree of guidance to ensure safety, advisory control is the appropriate choice.