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Tests To Create Tread Buildup On Railroad Wheels

The Federal Railroad Administration (FRA) Office of Research, Development, and Technology and the Association of American Railroads (AAR) support research conducted by Transportation Technology Center, Inc. (TTCI) on the root cause of wheel-related accidents. The purpose of this project was to...

Analysis of Tread Buildup on Railroad Wheels

The Federal Railroad Administration (FRA) Office of Research, Development, and Technology and the Association of American Railroads (AAR) fund research conducted by Transportation Technology Center, Inc. (TTCI) on the root cause of wheel-related accidents. The purpose of this project was to...

Tensile Test Results of Samples Taken from Critical Areas of Bolsters

The Federal Railroad Administration (FRA) collaborated with the Association of American Railroads’ (AAR) Coupling System and Truck Castings Committee and Transportation Technology Center, Inc. (TTCI) to investigate possible solutions to railcar side frame and bolster failures.. 

Summary of Charpy and Dynamic Tear Testing of Bolster Samples

The Federal Railroad Administration (FRA) collaborates with the Association of American Railroads’ (AAR) Coupling System and Truck Castings Committee and Transportation Technology Center, Inc. to investigate possible solutions to early-life failures of railcar side frames and bolsters. ...