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52550
  
  

  5
Feb
2024
Technical Reports
Automated Train Operations Sensor Platform Framework Requirements
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Automated train operation, ATO, Sensor Platform, SP, ATO Sensor Platform, ATO SP, environmental monitoring, hazard detection, SP reference model, SP Framework, SP requirements, train control
**Abstract:** The Sensor Platform (SP) Framework was a system engineering project conducted in conjunction with the Association of American Railroads-funded development of automated train...
Report Number
              DOT/FRA/ORD-24/04

  Office
              RDI-23
    29
Sep
2023
Technical Reports
Development of a Bayesian Network-Based Accident Model for Hazmat Unit Trains
Author
          Federal Railroad Administration

Subject
                    Hazardous Materials,
                    Rolling Stock

**Keywords:** Risk analysis, unit trains, hazmat
**Abstract:** The objective of this research project was to develop a predictive risk model for the release of hazardous material transported in unit trains using data science techniques for...
Report Number
              DOT/FRA/ORD-23/37

  Office
              RDI-22
    28
Sep
2023
Technical Reports
Enhancing the Safety of Coupler Knuckles
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Coupler, knuckle, failure, fatigue, fracture, life calculation, load case combination, stress, tensile strength, train operation
**Abstract:** The primary objective of this research was to validate the finite element (FE) stress levels obtained during previous research through physical testing of a selected knuckle...
Report Number
              DOT/FRA/ORD-23/32

  Office
              RDI-22
    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
    21
Sep
2023
Technical Reports
Vertical Split Rim: Causes and Prevention
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Vertical split rim, VSR, wheel cracks, finite element analysis, FEA, residual stress, fatigue damage models, finite element, FE
**Abstract:** Vertical split rim (VSR) is a serious railway wheel failure mode that requires further research. Visual clues are not usually present until the crack propagates through the rim...
Report Number
              DOT/FRA/ORD-23/30

  Office
              RDI-22

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