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52550
  
  

  21
Jun
2022
Technical Reports
Framework for Wheel Life Model – Phase I
Author
          Federal Railroad Administration

Subject
                    Track/Train Interactions

**Keywords:** Rolling contact fatigue, contact stress, crack growth, crack initiation, creep, fatigue strength, heat treatment, pearlite, wheel damage map, quenching, residual stress, S-660, shakedown, time-temperature-transformation, tread-braking

Report Number
              DOT/FRA/ORD-22/25

  Office
              RDI-22
    23
May
2019
Technical Reports
Fiber Optic Train Tracking - Phase 1
Author
          Federal Railroad Administration

Subject
                    Fiber Optic

**Keywords:** Fiber Optic Acoustic Detection, FOAD, fiber optic, testing, North American railroad, train tracking
**Abstract:** The Federal Railroad Administration (FRA) contracted Transportation Technology Center, Inc. (TTCI) to test the train tracking capabilities of fiber optic acoustic detection (FOAD...
Report Number
              DOT/FRA/ORD-19/14

  Office
              RDI-23
    8
Apr
2019
Technical Reports
Railroad Test Track (RTT) Fiber Optic Acoustic Test Bed Expansion
Author
          Federal Railroad Administration

Subject
                    Fiber Optic

**Keywords:** Fiber Optic Acoustic Detection, FOAD, fiber optic, test bed, Railroad Test Track, RTT
**Abstract:** he Federal Railroad Administration (FRA) funded an expansion of the Railroad Test Track (RTT) Fiber Optic Acoustic Detection (FOAD) test bed. This test bed was designed for...
Report Number
              DOT/FRA/ORD-19/07

  Office
              RDI-23
    29
Nov
2018
Technical Reports
Evaluation of Fiber Optic Broken Rail Detection Systems : Appendices A Through B
Author
          Federal Railroad Administration

Subject
                    Fiber Optic

**Keywords:** Broken rail detection evaluation, fiber optic, Distributed Acoustic Sensing, DAS, track circuits
**Abstract:** Appendix A: TTCI have run a 25-week trial at the Facility for Accelerated Service Testing (FAST) site near Pueblo, Colorado, in which several fiber optic acoustic detection (FOAD...
Report Number
              DOT/FRA/ORD-18/37

  Office
              RDI-23
    29
Nov
2018
Technical Reports
Evaluation of Fiber Optic Broken Rail Detection Systems
Author
          Federal Railroad Administration

Subject
                    Fiber Optic

**Keywords:** Broken rail detection evaluation, fiber optic, Distributed Acoustic Sensing, DAS, track circuits
**Abstract:** Transportation Technology Center, Inc. (TTCI) conducted a baseline fiber optic broken rail detection evaluation on the High Tonnage Loop (HTL).  Three different Distributed...
Report Number
              DOT/FRA/ORD-18/37

  Office
              RDI-23

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