IRVR - what you need to know following the publication of CAP670 Part C,
Section 2: NAV01
“Runway Visual Range (RVR) is the range over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the lights delineating the runway or identifying its centre line” (ICAO Annex 6: Operation of Aircraft).
Because it is not possible to measure RVR directly, an assessment is made, either by a human observer or using an automated system to provide what is called Instrumented Runway Visual Range, (IRVR). The reliable and accurate assessment of RVR is essential if airport operations are to run as safely and efficiently in low visibility conditions.
Aerodrome Certification: Key To Safe And Efficient Aerodrome Operations
Aerodrome Certification: Key To Safe And Efficient Aerodrome Operations The international civil aviation network carries over four billion passengers around the world annually. In celebrating ICAO’s 75th Anniversary Celebrations, we will be highlighting some of the crucial safety achievements that have enabled this. We hope you follow our UnitingAviation.com series throughout the year, and we encourage you to use the #ICAO75 hashtag to share your thoughts and memories with us through social media.