AAR-2A Wheel Profile

Next Generation Wheel Profile: AAR-2A

TTCI R&D, RAILWAY AGE JUNE 2020 ISSUE: The AAR-2A, a new standard wheel profile recently implemented for use in North American freight railway operations, is expected to provide improved service performance for wheelsets. This assessment is based on the analysis, simulation and testing conducted by Transportation Technology Center, Inc. (TTCI).