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5
Jul
2024
Research Results
Full-Scale Shell Impact Test of a DOT-105J500W Tank Car Designed to Carry Liquid Carbon Dioxide
Subject
Research,
Rolling Stock
Keywords: DOT-105, tank cars, impact testing, puncture resistance, hazardous materials, hazmat, finite element analysis, model validation, carbon dioxide
Report Number
RR 24-07
Office
RDI-22
3
Jun
2024
Technical Reports
Ballast Fouling Measurement Tool – Phase II
Subject
Research,
Track
Keywords: Ground-penetrating radar, ballast, fouling, moisture
Abstract: Researchers developed a second-generation RAdar Ballast Inspection Tool (RABIT) using ground-penetrating radar (GPR) for use by track inspectors. This system is much lighter (...
Report Number
DOT/FRA/ORD-24/22
Office
RDI-21
3
Jun
2024
Technical Reports
Mitigation of Differential Movement at Railway Transitions for U.S. High-Speed Passenger Rail and Joint Passenger/Freight Corridors
Subject
Research,
Track
Keywords: Railway transitions; bridge approach; differential movement; high-speed passenger rail; freight rail; ballast; tie-ballast gap; settlement; transient response; numerical modeling
Abstract: To address the need to minimize differential movement at railway transitions for joint high-speed passenger and freight routes in the U.S., this research study identified and...
Report Number
DOT/FRA/ORD-24/21
Office
RDI-21
17
May
2024
Technical Reports
Reference Document: Reducing Hazards Associated with Visual and Automation-Aided Track Inspections: Supplementary Information
Subject
Track
Keywords: Track research, track inspection, inspection, automated inspection, automation-aided inspection, railroad, track safety, safety, human factors, passenger rail, systems-theoretic process analysis, STPA, STAMP, track geometry measurement system, TGMS, aTGMS
Abstract: This document provides supplementary information to accompany the previously published Federal Railroad Administration (FRA) report titled Reducing Hazards Associated with...
Report Number
Supplementary Reference Document for DOT/FRA/ORD-2
Office
RDI-21
17
May
2024
Technical Reports
Advanced Modeling of Wheel-Rail Friction Phenomena
Subject
Track
Keywords: wheel-rail contact, creep force, friction, interfacial layer, simulation
Abstract: From 2017–2019, the Federal Railroad Administration sponsored VORtech and its project partners to develop advanced physics-based modeling of wheel-rail friction. Sub-models...
Report Number
DOT/FRA/ORD-24/18
Office
RDI-21