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52550
  
  

  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
    11
Jul
2023
Technical Reports
Development of an Operationally Efficient PTC Braking Enforcement Algorithm for Freight Trains: Appendices F
Author
          Joe Brosseau, Bill Moore Ede, Shad Pate, RB Wiley, and Joe Drapa

Subject
                    Braking Systems,
                    Positive Train Control,
                    Signal and Train Control

**Keywords:** Braking algorithm, enforcement algorithm, positive train control, PTC, train control, simulation, Monte Carlo simulation, adaptive enforcement algorithm, emergency brake backup

Report Number
              DOT/FRA/ORD-13/34

  Office
              RRD
    11
Jul
2023
Technical Reports
Development of an Operationally Efficient PTC Braking Enforcement Algorithm for Freight Trains: Appendices G-L
Author
          Joe Brosseau, Bill Moore Ede, Shad Pate, RB Wiley, and Joe Drapa

Subject
                    Braking Systems,
                    Positive Train Control,
                    Signal and Train Control

**Keywords:** Braking algorithm, enforcement algorithm, positive train control, PTC, train control, simulation, Monte Carlo simulation, adaptive enforcement algorithm, emergency brake backup

Report Number
              DOT/FRA/ORD-13/34

  Office
              RRD
    13
Feb
2018
Technical Reports
Slab Track at Facility for Accelerated Service Testing:  Performance and Serviceability
Author
          Federal Railroad Administration

Subject
                    Signal and Train Control

**Keywords:** Slab track, track geometry, instrumented wheelsets, heavy axle load, HAL
**Abstract:** The Transportation Technology Center, Inc., with funding by the Portland Cement Association and the Federal Railroad Administration, documented the available records associated...
Report Number
              DOT/FRA/ORD-18/02

  Office
              RDI-21
    1
Jul
2017
Technical Reports
Recognition of Rail Car Retroreflective Patterns for Improving Nighttime Conspicuity
Author
          Jordan Multer, Joseph Conti, and Thomas Sheridan

Subject
                    Grade Crossing Technology,
                    Highway-Rail Grade Crossing Warning Systems,
                    Human Factors,
                    Signal and Train Control

**Keywords:** Conspicuity, freight car, highway-railroad grade crossing, pattern recognition, recognition, reflectorization, retroreflective material, safety, signal detection theory, visibility, warning device
**Abstract:** Researchers evaluated whether train-mounted reflector pattern designs help nighttime drivers recognize and avoid hitting trains at grade crossings.
Report Number
              DOT/FRA/ORD-00/07

  Office
              RRD

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