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5
Aug
2024
Technical Reports
Relationship of Inspection Methods to Ballast Degradation Models: Phase II
Subject
Research,
Track
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...
Report Number
DOT/FRA/ORD-24/26
Office
RDI-21
30
Jul
2024
Technical Reports
Risk Analysis Methodology for Unit and Manifest Trains Transporting Hazardous Material
Subject
Rolling Stock
Keywords: Risk analysis; unit train; manifest train; hazardous material; mainlines; yard; terminal.
Abstract: Between August 2019 and May 2022, the Federal Railroad Administration sponsored researchers from Rutgers University, the University of Illinois at Urbana Champaign, Applied...
Report Number
DOT/FRA/ORD-24/24
Office
RDI-22
25
Jul
2024
Technical Reports
Defect Growth Characterization in Modern Rail Steel
Subject
Track
Keywords: Modern rail steel characterization, railhead hardening, detail fracture, fatigue, microstructural gradient in railhead, residual stresses, rail inspection interval
Abstract: This report discusses a comprehensive fatigue and fracture characterization of modern head-hardened rails in reference to legacy rails. The focus is in on detail (i.e.,...
Report Number
DOT/FRA/ORD-24/23
Office
RDI
16
Jul
2024
Safety Advisories
Safety Advisory 2023-01; Evaluation of Policies and Procedures Related to the Use and Maintenance of Hot Bearing Wayside Detectors (Second Supplement)
Keywords: Safety Advisory, wayside detector, hot bearing
Safety Advisory Number
2023-01; Notice No. 3
24
Jun
2024
Technical Reports
Development of Railroad Trespassing Database Using Artificial Intelligence
Subject
Communications,
Train Control
Keywords: Grade Crossing, Right-of-Way, Trespassing, Artificial Intelligence, Safety, Human Factors
Abstract: The Federal Railroad Administration (FRA) sponsored a research team from Rutgers University to develop a proof-of-concept Trespassing Database using Artificial Intelligence (AI...
Report Number
DOT/FRA/ORD-24/09
Office
RDI-23