What is the purpose of the RVR Reporting System in CAT II operations?

The purpose of the RVR (Runway Visual Range) Reporting System in CAT II operations is to report visibility. RVR provides crucial data about the horizontal distance a pilot can see down the runway, which directly affects the ability to take off and land safely in low visibility conditions. In CAT II operations, where visibility can be significantly restricted, having accurate and timely reports of RVR ensures that airlines and pilots can make informed decisions regarding flight operations. This information helps determine whether conditions are suitable for landing and helps ensure that safety protocols are adhered to during critical phases of flight.

Other options, although related to aviation, do not directly pertain to the function of the RVR Reporting System. Measuring aircraft speed, monitoring runway condition, and calculating flight path serve different purposes in flight operations and management, but they do not address the specific role of RVR in reporting visibility during landing approaches.