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15
Apr
2019
Technical Reports
Quasi-Static Research Testing of Workstation Tables
Subject
Occupant Protection,
Crashworthiness - Passenger Equipment,
Testing
Keywords: Passenger rail car, workstation tables, energy absorption, interior crashworthiness, train collision safety
Abstract: Sharma & Associates, Inc. (SA) performed quasi-static destructive loading tests on two different designs of passenger workstation tables in accordance with the requirements of...
Report Number
DOT/FRA/ORD-19/08
Office
RDI-22
10
Sep
2018
Technical Reports
Material and Manufacturing Requirements for Freeze-Thaw Durable Concrete Railroad Ties, Appendices A Through C
Subject
Testing
Keywords: Concrete consolidation, air void system, freeze-thaw durability, concrete crosstie
Abstract: Appendix A documents additional rheological data taken on concrete during vibration; while Appendix B depicts the measured and predicted temperature and relative humidity of...
Report Number
DOT/FRA/ORD-18/31
Office
RDI-21
5
Sep
2018
Technical Reports
Inspection of Concrete Ties Using Sonic/Ultrasonic Impact Velocity and Impact Echo Measurements
Subject
Testing
Keywords: Concrete, crossties, ties, Rayleigh waves, impact echo, impact velocity
Abstract: This report documents NDT Corporation’s development of a non-destructive system for inspecting the internal condition of concrete crossties using sonic/ultrasonic impact velocity...
Report Number
DOT/FRA/ORD-18/32
Office
RDI-21
27
Aug
2018
Technical Reports
Material and Manufacturing Requirements for Freeze-Thaw Durable Concrete Railroad Ties: Volume II
Subject
Testing
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...
Report Number
DOT/FRA/ORD-18/31
Office
RDI-21
21
Aug
2018
Technical Reports
Material and Manufacturing Requirements for Freeze-Thaw Durable Concrete Railroad Ties: Volume I
Subject
Testing
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...
Report Number
DOT/FRA/ORD-18/31
Office
RDI-21
20
Aug
2018
Technical Reports
Seismic Testing for Track Substructure Assessment
Subject
Testing
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...
Report Number
DOT/FRA/ORD-18/30
Office
RDI-21
17
Jul
2018
Research Results
Railroaders’ Guide to Healthy Sleep: A Research-Based Educational Website
Subject
Sleep Disorders
Keywords: Sleep health, fatigue, railroad safety culture, human factors, fatigue risk management, sleep disorders
Abstract: Originally launched in 2012, the Railroaders’ Guide to Healthy Sleep (RGHS) website (http://www.RailroaderSleep.org) is a non-regulatory, educational resource. Designed for...
Report Number
RR 18-11
Office
RDI-24
13
Jul
2018
Technical Reports
Discrete Element Modeling of Railroad Ballast Behavior
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
18
Sep
2017
Technical Reports
Signaling System and Advanced Civil Speed Enforcement System Upgrade to Transit Test Track at the Transportation Technology Center : Appendix A: Alstom Aspect Chart
Subject
Positive Train Control,
Testing
Abstract: The Federal Railroad Administration (FRA) and the Transportation Technology Center, Inc. (TTCI) have upgraded the Positive Train Control (PTC) Test Bed at the Transportation...
Report Number
DOT/FRA/ORD-17/16
Office
RDI-23
18
Sep
2017
Technical Reports
Signaling System and Advanced Civil Speed Enforcement System Upgrade to Transit Test Track at the Transportation Technology Center : Appendix B: Transponder Database Layout Description -TTT Loop
Subject
Positive Train Control,
Testing
Abstract: The Federal Railroad Administration (FRA) and the Transportation Technology Center, Inc. (TTCI) have upgraded the Positive Train Control (PTC) Test Bed at the Transportation...
Report Number
DOT/FRA/ORD-17/16
Office
RDI-23