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52550
  
  

  5
Mar
2019
Technical Reports
Data Analysis for Maintenance-of-Way Worker Fatigue
Author
          Federal Railroad Administration

Subject
                    Fatigue Management

**Keywords:** Fatigue, work schedule, maintenance-of-way, sleep pattern, alertness, shiftwork, hours of service, biomathematical fatigue model

Report Number
              DOT/FRA/ORD-19/02

  Office
              RDI-24
    21
Nov
2018
Research Results
Report on the New Rail Integrity and Performance Testing at the Mega Sites
Author
          Federal Railroad Administration

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
    6
Jun
2018
Research Results
Ballast Degradation Under Heavy Axle Load Trains at the Western Mega Site
Author
          Federal Railroad Administration

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
    2
May
2018
Accident Investigations
HQ-2018-1266 (Finalized)

Subject
                    Accident Investigations,
                    Fatigue Management,
                    Human Factors,
                    Switching Operations

**Keywords:** derailment; BNSF Railway Company; Saginaw, TX; human factors
**Abstract:** At approximately 1:30 a.m., CDT, BNSF Railway (BNSF) derailed 18 railcars in the Saginaw, Texas Yard, at Milepost (MP) 351.4 on the Ft. Worth Subdivision. The switch crew handling...
Accident Date
              May 2, 2018

  Accident Type
              Derailment (DRM)

  Railroad Name
              BNSF Railway Company

  Location
              Saginaw, TXUnited States

  Accident Number
              HQ-2018-1266

  Investigation Status
              Finalized
    27
Feb
2018
Research Results
Performance of No. 20 Frogs of Various Designs in Revenue Service
Author
          Federal Railroad Administration

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

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