eLibrary Search
The FRA eLibrary contains all the documents that are found throughout the FRA Public Website. Multiple pages on the website may link to the same eLibrary item based on its set of metatdata.
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Technical Reports
Material and Manufacturing Requirements for Freeze-Thaw Durable Concrete Railroad Ties: Volume II
Keywords: Concrete consolidation, air void system, freeze-thaw durability, concrete crossties, vibratio
Abstract: This study was performed to determine the effects of vibration on concrete air voids and freeze-thaw durability, and applicable freeze-thaw quality control tests. Volume I of the...
Technical Reports
Material and Manufacturing Requirements for Freeze-Thaw Durable Concrete Railroad Ties: Volume I
Keywords: Concrete consolidation, air void system, freeze-thaw durability, concrete crosstie
Abstract: This research program was conducted as a partnership between the University of Illinois at Urbana-Champaign (UIUC), Kansas State University (KSU), and the Illinois Department of...
Technical Reports
Seismic Testing for Track Substructure Assessment
Keywords: Seismic testing, Spectral Analysis of Surface Waves, SASW, shear-wave velocity, Young’s modulus, stiffness, ballast, sub-ballast, track geometry
Abstract: The University of Illinois at Urbana-Champaign (UIUC) presented equipment, test procedure, and interpretation techniques to rapidly, non-invasively, and quantitatively measure the...
Technical Reports
Discrete Element Modeling of Railroad Ballast Behavior
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...
Technical Reports
Autonomous Track Geometry Measurement Technology Design, Development, and Testing
Keywords: Track geometry inspection, autonomous, unmanned, ATGMS, autonomous track geometry measurement systems, track assessment
Abstract: The Federal Railroad Administration’s (FRA) Office of Research, Development and Technology has long advocated for the development and advancement of autonomous track geometry...