What is a key benefit of ADS-B for ATC surveillance?

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Multiple Choice

What is a key benefit of ADS-B for ATC surveillance?

ADS-B’s surveillance benefit comes from aircraft automatically broadcasting precise position and velocity data. With ADS-B Out, a aircraft’s GNSS-determined position and velocity are sent continuously to ATC ground systems, enabling real-time, highly accurate tracking even where traditional radar coverage is limited or absent. This automatic data sharing improves situational awareness and allows ATC to manage separation more efficiently without relying solely on radar sweeps. This isn’t about ATC being replaced or about needing ground radar to function. ATC still coordinates instructions and traffic flow; ADS-B enhances surveillance, not replaces the control function. ADS-B also doesn’t inherently provide weather updates as part of its core data, so weather information isn’t the reason for its surveillance advantage.

ADS-B’s surveillance benefit comes from aircraft automatically broadcasting precise position and velocity data. With ADS-B Out, a aircraft’s GNSS-determined position and velocity are sent continuously to ATC ground systems, enabling real-time, highly accurate tracking even where traditional radar coverage is limited or absent. This automatic data sharing improves situational awareness and allows ATC to manage separation more efficiently without relying solely on radar sweeps.

This isn’t about ATC being replaced or about needing ground radar to function. ATC still coordinates instructions and traffic flow; ADS-B enhances surveillance, not replaces the control function. ADS-B also doesn’t inherently provide weather updates as part of its core data, so weather information isn’t the reason for its surveillance advantage.

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