What does RVR stand for in air traffic control?

• A. Radar Visual Range
• B. Runway Visibility Range
• C. Runway Visual Reference
• D. Real-time Visibility Reading

Answer: (B)

RVR, which stands for Runway Visibility Range, is a crucial metric in air traffic control that indicates the horizontal distance a pilot can see down the runway, particularly during low visibility conditions such as fog or heavy rain. It is an important factor in determining whether an aircraft can take off or land safely, as it allows air traffic controllers and pilots to assess the current weather conditions affecting runway operations. Accurate RVR readings help ensure safe separation of aircraft and assist pilots in making informed decisions regarding approach and landing maneuvers.

The other options, while they may contain terms related to visibility or radar, do not accurately capture the specific meaning of RVR in the context of air traffic management. For instance, "Radar Visual Range" would imply a measurement involving radar technology, which is not the focus of RVR. Similarly, "Runway Visual Reference" and "Real-time Visibility Reading" deviate from the established term and importance of Runway Visibility Range in aviation operations.