Definition
A numerical scale from 0 to 6 used to describe runway surface conditions and the braking action a pilot can expect during landing or rejected takeoff. A code of 6 represents a dry runway with normal braking, while lower numbers indicate progressively more contaminated and slippery surfaces, with 0 representing nil braking action. The codes are determined by airport operators using a Runway Condition Assessment Matrix (RCAM) that considers contaminant type, depth, and temperature, and are reported through Field Condition (FICON) NOTAMs.
Plain English
A simple 0-to-6 number that tells pilots how slippery a runway is right now. Six means dry and good braking. Zero means almost no braking at all. The lower the number, the worse the stopping conditions.
Context Anchor
Pilots encounter runway condition codes in airport field condition reports, NOTAMs, ATIS broadcasts, and preflight planning for takeoff or landing on a runway that may not be dry.
Derivation
The system replaced older subjective terms like 'good,' 'fair,' and 'poor' braking action with a standardized numerical scale. Using numbers instead of words removes ambiguity — a '3' means the same thing at every airport, while 'fair' could be interpreted differently by different reporters.
Why Pilots Care
The code directly affects landing distance calculations, go/no-go decisions, and expected braking performance for safe operations.
Analogy
Think of the code as a simple runway grip score. A 6 is good grip; a 0 means the runway offers essentially no useful braking.
Grounding Statement
If a runway has snow on the first third, slush in the middle, and wet pavement near the end, each third may receive a different runway condition code.
Intuition Check
Do not read a runway condition code as a general airport rating. It is specifically about expected braking performance on a particular runway surface, often reported separately for each third of the runway.
Example Sentence 1
ATIS reported Runway Condition Codes of 5/4/3, so the crew recalculated their landing distance before continuing the approach.
Example Sentence 2
With an RVFP of 1 due to ice, the crew elected to divert rather than attempt a landing.