The FAA has approved Vaisala AviMet PC-Based Runway Visual Range (RVR) system for airports across the country.

Runway Visual Range is a calculated assessment of the distance that a pilot can see down a runway. Prevailing weather conditions have the most impact on RVR, but ambient light levels and runway light settings also play an important part in the equation, according to Vaisala officials. In addition to having an impact on flight safety, RVR assessment also has an impact on airport capacity as runways can be safely kept open longer under diminishing weather conditions.

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