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52550
  
  

  15
Feb
2024
Technical Reports
Impact of Advanced Train Control Technologies on Rail Network Safety and Operational Performance
Author
          Federal Railroad Administration

Subject
                    Rolling Stock

**Keywords:** Advanced braking system, ABS, braking characteristics, freight train, network capacity, network velocity, passenger train, Positive Train Control, PTC, shared corridor, track utilization, train delay
**Abstract:** From September 2018 to September 2021, the Federal Railroad Administration contracted Sharma & Associates to conduct an analysis of simulation results from a 5,000-mile...
Report Number
              DOT/FRA/ORD-24/10

  Office
              RDI-22
    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
    8
Dec
2023
Technical Reports
PTC Communications: Cybersecurity Technology Review and Concept of Operations
Author
          Federal Railroad Administration

Subject
                    Positive Train Control,
                    Security

**Keywords:** Positive Train Control, PTC, railroad, shared network, Interoperable Train Control Messaging, ITCM, cybersecurity, encryption, National Institute of Standards and Technology, NIST, ELLI
**Abstract:** Researchers sought to determine how to improve the confidentiality of information passing through the...
Report Number
              DOT/FRA/ORD-23/39

  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
    29
Sep
2023
Technical Reports
Load Environment Characterization of Tank Car Stub Sill During Revenue Operations

Subject
                    Hazardous Materials,
                    Rolling Stock

**Keywords:** Tank Cars, Rail, Stub Sill Failures, Impact Test, Yard Operation, Mainline Operation, Main Operation, Car Coupling, Draft Gear, Instrumented Couplers
**Abstract:** Fractures in the stub sills of tank cars pose a significant problem for the rail industry due to the potential for damage to the tank structure and possible release of the...
Report Number
              : DOT/FRA/ORD-23/34

  Office
              RDI-22

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