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30
Apr
2013
Technical Reports
Load Environment of Rail Joint Bars – Phase I Effects of Track Parameters on Rail Joint Stresses and Crack Growth
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: rail joint bars, insulated joints, joint failures
Abstract: The load environment of joint bars was assessed under a variety of loading and track conditions. Bending stresses, thermal stresses, and residual stresses were measured on...
Report Number
DOT/FRA/ORD-13/24
Office
RRD
22
Mar
2013
Technical Reports
Track Buckling Prevention: Theory, Safety Concepts, and Applications
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Track Buckling, Lateral Stability, CWR, Buckling Prevention, Buckling Models, CWR Safety and Maintenance, Neutral Temperature, Rail Temperature
Abstract: This report is a part of the John A. Volpe National Transportation Systems Center’s Track Stability Research Program for the Federal Railroad Administration on thermal buckling of...
Report Number
DOT/FRA/ORD-13/16
Office
RRD
22
Mar
2013
Research Results
Developing a Reliable Method for Signal Wire Attachment
Subject
Track,
Track/Train Interactions,
Tracks & Structures
Keywords: Inertia Friction Welding, Signal Wire, Signal Wire Bonding, Rail Wire Interface
Report Number
RR13-13
Office
RDI-21
22
Feb
2013
Technical Reports
Next-Generation Foundations for Special Trackwork – Phase I
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Dynamic load environment, special trackwork frog foundations, wheel-rail impact, modeling
Abstract: This report reviews the dynamic load environment and failure modes of special trackwork frog foundations. Key measurements taken under a 39,000-pound wheel load traffic at the...
Report Number
DOT/FRA/ORD-13/10
Office
RRD
22
Feb
2013
Technical Reports
Railway Cognitive Radio to Enhance Safety, Security, and Performance of Positive Train Control
Subject
Cellular Telephones/Other Electronic Devices,
Positive Train Control,
Signal and Train Control
Keywords: Positive Train Control (PTC), Software Defined Radio (SDR), Cognitive Radio (CR), wireless communications
Abstract: Robust and interoperable wireless communications are vital to Positive Train Control (PTC). The railway industry has started adopting software-defined radios (SDRs) for packet-...
Report Number
DOT/FRA/ORD-13/09
Office
RRD