The GRF comprises an assessment by airport operations staff using a Runway Condition Assessment Matrix (RCAM) and the consequent assignment of a Runway Condition Code (RWYCC) rangingfrom 6 to 0, see below. This code is complemented by a description of the surface contaminant based on type, depth and % coverage for each third of the runway. The code is based on the effect of the runway conditions on aircraft braking.
The outcome of the assessment and associated RWYCC are transmitted using a Runway Condition Report (RCR) forwarded to air traffic services and the aeronautical information services for dissemination to pilots. The pilots will use the RWYCC to determine their aircraft’s performance by correlating the code with performance data provided by their aircraft’s manufacturer. This will help pilots to correctly carry out their landing and take-off performance calculations for wet or contaminated runways.
