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52550
  
  

  28
Sep
2023
Technical Reports
Topology-based Analysis of Freight Railroad Networks for Resilience: Unweighted and Weighted Using Waybill Data
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Connectedness, Efficiency, Freight, Network, Performance, Railroads, Resilience, Risk, Topology, Waybill
**Abstract:** The Federal Railroad Administration sponsored a team at the University of Maryland at College Park’s Center for Technology and Systems Management (CTSM) to develop methods and...
Report Number
              DOT/FRA/ORD-23/35

  Office
              RDI-22
    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
    28
May
2021
Environmental Review Documents
Hudson Tunnel Project - Combined Final Environmental Impact Statement/Record of Decision and Final Section 4(f) Evaluation: FEIS Chapter 14: Greenhouse Gas Emissions and Resilience
Author
          Federal Railroad Administration; NJ Transit; Port Authority NY NJ
    13
Jan
2020
Technical Reports
Teamwork in Railroad Operations and Implications for New Technology
Author
          Federal Railroad Administration

Subject
                    Human Factors

**Keywords:** Human factors, cognitive task analysis, locomotive engineer, conductor, dispatcher, roadway worker, displays, Positive Train Control, PTC, teamwork, human system integration, HSI, safety
**Abstract:** This report examines teamwork processes that contribute to railroad operation safety.  It integrates findings from previously conducted Cognitive Task Analyses (CTAs) that...
Report Number
              DOT/FRA/ORD-20/01

  Office
              RDI-24
    21
Jun
2016
Research Results
Ballast Degradation Characterized through Triaxial Testing
Author
          Federal Railroad Administration


**Keywords:** Ballast degradation, triaxial testing, LA abrasion test
**Abstract:** Transportation Technology Center, Inc. (TTCI) has supported the development of a large-scale triaxial test device for testing ballast size aggregate materials at the University...
Report Number
              RR 16-21

  Office
              RDI-21

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