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1
Aug
2018
Research Results
Understanding the Splitting and Bursting Failure of Concrete Crossties
Subject
Analysis
Keywords: Pretensioned concrete crosstie, splitting crack, bursting crack, concrete release strength, prestressing wire, prestressing strand, bond strength, finite element analysis
Abstract: Under the sponsorship of the Federal Railroad Administration, finite element (FE) analyses were conducted at the Volpe National Transportation Systems Center (Volpe Center)...
Report Number
RR 18-12
Office
RDI-21
23
Feb
2018
Technical Reports
Unmanned Aircraft System Applications in International Railroads
Subject
Intelligent Railroad Systems
Keywords: Unmanned Aerial Vehicles, UAV, Unmanned Aircraft Systems, UAS, international railroad, Beyond Visual Line of Sight, BVLOS, ground penetrating radar, UAS technology
Abstract: This report summarizes the current uses and issues associated with Unmanned Aircraft Systems (UAS) in railroad applications, and provides the use cases employed by railroads. The...
Report Number
DOT/FRA/ORD-18/04
Office
RDI-21
8
Dec
2017
Accident Investigations
HQ-2017-1237 (Finalized)
Subject
Accident Investigations,
Freight Operations,
Hazardous Materials
Keywords: Accident Investigations, CSX, Hazardous Materials
Abstract: On December 8, 2017, at 2:08 p.m., EST, eastbound CSX Transportation (CSX) mixed freight Train Q40407, consisting of 3 locomotives and 141 cars (66 loads/75 empties), derailed 31...
Accident Date
Accident Type
Derailment (DRM)
Railroad Name
CSX Transportation
Location
Union, NJ
United States
Accident Number
HQ-2017-1237
Investigation Status
Finalized
29
Nov
2017
Technical Reports
Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors: Volume 1 – Project Summary Report
Subject
Freight Operations,
Passenger Rail
Keywords: Concrete crossties, fastening systems, flexural behavior, mechanistic design, infrastructure components, finite element modeling, field experimentation
Abstract: Rail corridors often experience a wide variety of passenger and freight train loads, track geometry characteristics, and environmental conditions. These factors must be considered...
Report Number
DOT/FRA/ORD-17/23
Office
RDI-21
29
Nov
2017
Technical Reports
Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors: Volume 2
Subject
Freight Operations,
Passenger Rail
Keywords: Concrete crossties, fastening systems, flexural behavior, mechanistic design, infrastructure components, finite element modeling, finite element, FE, finite element analysis, FEA, field experimentation
Report Number
DOT/FRA/ORD-17/23
Office
RDI-21