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Monitoring and Modeling of Differential Movement at Railway Transitions
The Federal Railroad Administration sponsored a research team from the University of Illinois at Urbana-Champaign to conduct laboratory and field research of railroad bridge transitions between September 2011 and December 2015. In this report, researchers present an interpretation of Amtrak and...
An Investigation of the Effects of Positive Train Control Systems on Track Maintenance
The Federal Railroad Administration (FRA) contracted Transportation Technology Center, Inc. (TTCI) to conduct a broad analysis of the impacts of Positive Train Control (PTC) systems and technology on track maintenance. This research was conducted between September 2019 and September 2020. This...
Advanced Component Testing: Tri-coupler Testing and Freight Car Electrical Power Supply System Demonstration
FRA sponsored Transportation Technology Center, Inc. (TTCI) to perform evaluation tests on tri-couplers designed and produced by Sharma Associates, Inc. (SA). SA designed and produced the freight car Electrical Power Supply System (EPSS), while TTCI provided support for the installation and...
Automated Weld Repair of Manganese Frogs for Extended Service Life
EWI completed research and testing of an automated weld repair process for austenitic manganese steel railroad frogs. This report covers the second of two projects sponsored by the Federal Railroad Administration and EWI executed this research between March 2016 and June 2022. In this phase of...