TRSA service in the terminal radar program provides which of the following?

• A. Weather data
• B. Sequencing and separation
• C. Flight planning assistance
• D. Emergency alerts

Answer: (B)

TRSA service focuses on radar-based traffic management to keep aircraft safely spaced and flowing smoothly in the terminal area. In this program, air traffic controllers use radar to sequence arriving and departing aircraft and provide the necessary separation between them. This helps organize the approach and departure streams, reduce conflicts, and improve efficiency around busy airports.

Weather data, flight planning assistance, and emergency alerts are not provided by TRSA. Weather information comes from meteorological sources, flight planning is done by the pilot or a planning service, and emergency alerting is handled through separate ATC and emergency procedures. The key function of TRSA is to manage how aircraft are lined up and kept apart in the terminal environment.