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13 Jul 2018

Technical Reports

Discrete Element Modeling of Railroad Ballast Behavior

Author
Federal Railroad Administration

Subject Laboratory, Testing

Keywords: Ballast behavior, discrete element modeling, DEM, Discrete Element Method, triaxial test, fouling, dynamic train loading, ballast degradation and image analysis

Abstract: An innovative integrated computational-experimental laboratory testing framework has been developed at the University of Illinois at Urbana-Champaign to evaluate clean and fouled...

Report Number
DOT/FRA/ORD-18/20
Office
RDI-21

1 Dec 2009

Technical Reports

An Independent Evaluation of the Switching Operations Fatality Analysis 2010 Working Group's Processes

Author
Deborah Bonnet, Michael Coplen, Michael Quinn Patton, Joyce Ranney & Juna Snow

Subject Signal and Train Control, Switching Operations

Keywords: Evaluation, SOFA, Fatality, Rail

Abstract: The Switching Operations Fatality Analysis (SOFA) Working Group was formed to analyze the factors contributing to fatalities in switching operations. The 2010 Working Group...

Report Number
DOT/FRA/ORD-09/23
Office
RRD

4 Nov 1975

Technical Reports

Test Specification #7115 for Switchyard Impact Tests (RPI-AAR Phase 15)

Author
W.G. Gjertson, Ross T. Gill, Larry J. Schlink, P. Tong, David Peters

Subject Switching Operations, Evaluation

Keywords: Switchyard Impact Tests, Reduction Requirements, Instrumentation Requirements, Physical Pre-Test Measurement Techniques

Abstract: This report contains information regarding test specification #7115 for switchyard impact tests. It covers test requirements, photo coverage requirements, instrumentation...

Office
RRD