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5
Aug
2024
Reports
Relationship of Inspection Methods to Ballast Degradation Models: Phase II
Subject
Tracks & Structures
Keywords: Ballast; settlement; mud pumping; fouling index; forecasting; track inspection; track modulus; track; Railway Track Lifecycle Model; RTLM
Abstract:
This report is a follow on of the first phase of a Federal Railroad Administration (FRA)-sponsored project to evaluate lateral ballast behavior and how mechanics-based track...
28
Nov
2016
Presentations
2016 FRA Rail Program Delivery: Building a Funding & Financing Strategy Plan for Mega / Complex Projects
Subject
Tracks & Structures,
Grants & Financial Assistance
Keywords: Funding & Financing Strategy Plan
Abstract: The Federal Railroad Administration hosted the third FRA Rail Program Delivery Meeting—a 2.5-day conference for grantees, railroad representatives, federal oversight contractors,...
Presenter
Mark E. Gander, Robert L. Peskin
Audience
FRA - HQ
Location
Washington, DC
United States
25
Jul
2014
Technical Reports
Evaluation of Wheel/Rail Contact Mechanics: Concepts Report
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Roller Rig, Wheel-Rail Contact Mechanics, Rail Vehicle Dynamics, Contact Patch Dynamics, Wheel Forces and Moments
Abstract: A need exists for a new test rig design with advanced sensing technologies that will allow the railroad industry and regulatory agencies to better understand the wheel-rail...
Report Number
DOT/FRA/ORD-14/28
Office
RDI-21
18
Jul
2014
Technical Reports
Load Environment of Rail Joint Bars—Phase II Joint Bar Service Environment and Fatigue Analysis
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Strain levels, joint bar fatigue analysis, residual stress, joint bar strength
Abstract: Detailed analysis of measured bending strains shows that the foundation deflections have the most significant effect on the magnitude of strains. All other factors, such as track...
Report Number
DOT/FRA/ORD-14/22
Office
RDI-21
18
Oct
2013
Technical Reports
Feasibility Study of Fiber-Optic Technology for Broken Rail Detection
Subject
Rail and Infrastructure Integrity,
Track,
Tracks & Structures
Keywords: Fiber Optic, Broken Rail, Acoustic, Seismic, Rail Break, Wayside Systems
Abstract: This report describes the activities and presents the results of a feasibility study to examine the viability of using fiber-optic acoustic technologies to detect broken rails in...
Report Number
DOT/FRA/ORD-13/44
Office
RRD