What does ADS-B provide to air traffic control?

ADS-B, or Automatic Dependent Surveillance–Broadcast, provides critical information to air traffic control by transmitting altitude and position data along with connectivity information. This system enhances situational awareness for both air traffic controllers and pilots by providing real-time updates on an aircraft’s precise location and altitude.

The connectivity aspect is significant as it indicates that this information can be transmitted to and shared with multiple aircraft and ground stations, enabling a more efficient and safer air traffic management system. This capability helps in monitoring flight paths and managing airspace more effectively, especially in busy airspace regions.

In contrast, other options do not accurately reflect the primary function of ADS-B. Non-available flight data does not contribute to air traffic control, while a description of the flight plan alone lacks the real-time positional data that ADS-B provides. Additionally, data solely for visual flying does not pertain to the system's purpose, which is to enhance surveillance capabilities rather than serving pilots operating under visual flight rules.