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21
Nov
2018
Research Results
Report on the New Rail Integrity and Performance Testing at the Mega Sites
Subject
Heavy Axle Load (HAL)
Keywords: Rail, rolling contact fatigue, RCF, wear, friction control, grinding
Abstract: Since 2005, the Association of American Railroads (AAR) and the Federal Railroad Administration (FRA) have co-sponsored ongoing rail performance testing under mainline heavy...
Report Number
RR 18-17
Office
RDI-21
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
6
Jun
2018
Research Results
Ballast Degradation Under Heavy Axle Load Trains at the Western Mega Site
Subject
Heavy Axle Load (HAL)
Keywords: Ballast degradation, triaxial testing, ballast box, heavy axle load, HAL
Abstract: Transportation Technology Center, Inc. (TTCI) and the University of Illinois Urbana-Champaign (UIUC), in conjunction with Union Pacific Railroad (UP), investigated ballast...
Report Number
RR 18-09
Office
RDI-21
27
Feb
2018
Research Results
Performance of No. 20 Frogs of Various Designs in Revenue Service
Subject
Heavy Axle Load (HAL),
Track
Keywords: Special trackwork, turnout frogs, frog heel, frog point, HAL
Abstract: Transportation Technology Center, Inc. (TTCI) tested and evaluated the performance of four No. 20 fixed-point frogs on the Norfolk Southern Railway (NS) track as part of the...
Report Number
RR 18-04
Office
RDI-21
30
Sep
2014
Technical Reports
BNSF San Bernardino Case Study: Positive Train Control Risk Assessment
Subject
Positive Train Control,
Signal and Train Control,
Risk Assessment
Keywords: Positive Train Control, Generalized Train Movement Simulator, I-ETMS, risk assessment, level splitting, engineering reliability metrics
Abstract: The Federal Railroad Administration funded the BNSF San Bernardino Case Study to verify its Generalized Train Movement Simulator (GTMS) risk assessment capabilities on a planned...
Report Number
DOT/FRA/ORD-14/31
Office
RRD
13
Jun
2014
Research Results
Part 1: Heavy Axle Load Revenue Service Mega Site Testing 2005–2012
Subject
Heavy Axle Load (HAL),
Track,
Track/Train Interactions,
Tracks & Structures
Keywords: Heavy axle load, track infrastructure, mega sites
Report Number
RR 14-13
Office
RDI-21
13
Jun
2014
Research Results
Part 2: Heavy Axle Load Revenue Service Mega Site Testing 2005–2012
Subject
Heavy Axle Load (HAL),
Track,
Track/Train Interactions,
Tracks & Structures
Keywords: Part 2: Heavy Axle Load Revenue Service Mega Site Testing 2005–2012
Report Number
RR 14-14
Office
RDI-21
20
May
2013
Technical Reports
Investigating Technical Challenges and Research Needs Related to Shared Corridors for High-Speed Passenger
Subject
High-Speed Passenger Rail,
Heavy Axle Load (HAL)
Keywords: Shared corridor, high speed rail, heavy axle load freight
Abstract: The development of both incremental and dedicated high-speed rail lines in the United States poses a number of questions. Despite nearly 50 years of international experience in...
Report Number
DOT/FRA/ORD-13/29
Office
RRD
1
Aug
2012
Research Results
Senior Cross-Functional Support---Essential for Implementing Corrective Actions at C3RS Sites
Subject
Human Factors,
Passenger Rail,
Risk Assessment,
Risk Reduction Program
Keywords: Close calls, human factors, safety culture, risk reduction, continuous improvement, employee involvement, passenger rail
Report Number
RR12-09
Office
RDI-24
1
Apr
2012
Research Results
Derailments Decrease at a C3RS Site at Midterm
Subject
Human Factors,
Risk Assessment,
Risk Reduction Program
Keywords: Close calls, human factors, safety culture, continuous improvement, employee involvement, passenger rail
Report Number
RR12-04
Office
RDI-24