What is the RCAF (U) the RCAF (A) and the RCAF-5?
Answer. The STB publishes three versions of the RCAF. They are the RCAF (Unadjusted), the RCAF (Adjusted), and the RCAF-5. The RCAF (Adjusted), reflects national average productivity changes as originally developed and applied by the ICC and is currently based on a 5-year moving average measure of productivity. The RCAF-5 reflects national average productivity changes as if a 5-year moving average measure of productivity had been applied consistently from the productivity adjustment’s inception in 1989.
