When should you issue traffic advisories?

Issuing traffic advisories is essential for maintaining safety in air traffic management. The correct choice emphasizes the importance of alerting pilots about potential conflicts, particularly when their aircraft may come too close to each other, which could violate separation minima. This proactive approach allows pilots to take appropriate actions to avoid traffic, enhancing overall safety.

This responsibility becomes particularly critical in situations where proximity between aircraft could lead to a loss of separation. By providing these advisories, air traffic controllers can help pilots make informed decisions about their flight paths and, when necessary, execute maneuvering actions to maintain safety.

The other choices do not align with best safety practices: only issuing advisories upon a pilot's request might prevent timely alerts in crucial situations; restricting advisories to Class A airspace ignores the need for awareness in all classes of airspace; and the idea of never issuing advisories in busy airspace overlooks the reality that high traffic levels necessitate increased awareness and communication for safety.