What does the acronym RVR stand for in aviation?

RVR stands for Runway Visibility Range, which is a critical measurement in aviation that indicates the distance that a pilot can see down the runway. It is especially important during low visibility conditions such as fog, rain, or snow, where visibility can be severely reduced. RVR is typically measured using specific instruments at the airport and is used in conjunction with the weather conditions to determine whether it is safe for aircraft to take off or land.

The concept of RVR is essential for ensuring safety during operations, as it provides pilots with clear information about visibility directly affecting their ability to navigate the runway effectively and maintain optimal safety standards during takeoffs and landings. Understanding RVR is crucial for both pilots and air traffic controllers, as it informs decision-making processes regarding flight operations under differing weather conditions.