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52550
  
  

  9
Feb
2024
Technical Reports
Mechanistic Investigation of Timber Crosstie Spike Fastener Failures – Phase I: The Magnitude of the Spike Failure Challenge
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:**  track research, cut spikes, drive spikes, screw spikes, elastic fastening systems, failure analysis, broken spikes
**Abstract:** The Rail Transportation and Engineering Center (RailTEC) at the University of Illinois at Urbana-Champaign (UIUC) performed a literature review, conducted an industry-wide...
Report Number
              DOT/FRA/ORD-24-06

  Office
              RDI-21
    11
Aug
2023
Technical Reports
Measurement and Characterization of Track Geometry Data: Literature Review and Recommendations for Processing FRA ATIP Program Data
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Track geometry, track quality, track irregularities, space curve, Track Quality Index, TQI, Track Geometry Measurement System, TGMS, Automated Track Inspection Program, ATIP, Power Spectral Density, PSD
**Abstract:** From October 2018 to March 2019, the Federal Railroad Administration sponsored Transportation Technology Center, Inc. to conduct a literature review on the methods of...
Report Number
              DOT/FRA/ORD-23/21

  Office
              RDI-21
    17
Feb
2023
Research Results
Railroad Bridge Inspection Using Drone-Based Digital Image Correlation
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Autonomous drone flight control, stereo digital image correlation, remote bridge inspection

Report Number
              RR 23-02

  Office
              RDI-21
    24
Oct
2022
Research Results
Rainy Section at FAST: Phase I Summary
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Ballast, mud pumping, settlement, track modulus, drainage

Report Number
              RR 22-31

  Office
              RDI-21
    18
Oct
2022
Research Results
Screw Spike and Spring Washer Hold-Down Force and Resiliency Investigation
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Screw spikes, spring washers, torque, broken spikes, elastic fasteners, longitudinal load, resiliency, track

Report Number
              RR 22-30

  Office
              RDI-21

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