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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
    6
Dec
2022
Other Reports
Carbon Dioxide Emissions from Four Real World Inter-City Passenger Trips: A Comparison of Rail, Air, and Road Travel Modes by City Pair
Author
          Federal Railroad Administration

Subject
                    Environmental Protection

**Keywords:** Carbon, greenhouse gas, operational emissions, transportation mode, Amtrak, climate change
    3
Sep
2020
Environmental Review Documents
Long Bridge Project FEIS/ROD: Appendix F - Agency, Operator, andOrganization Comments Received
Author
          Federal Railroad Administration, District Department of Transportation, Virginia Department of Rail and Public Transportation

Subject
                    Environmental Protection

**Keywords:** Long Bridge Project FEIS/ROD: Appendix F - Agency, Operator, andOrganization Comments Received
    3
Sep
2020
Environmental Review Documents
Long Bridge Project FEIS/ROD: Appendix G - Copies of All Public Comments
Author
          Federal Railroad Administration, District Department of Transportation, Virginia Department of Rail and Public Transportation

Subject
                    Environmental Protection

**Keywords:** Long Bridge Project FEIS/ROD: Appendix G - Copies of All Public Comments
    3
Sep
2020
Environmental Review Documents
Long Bridge Project FEIS/ROD: Appendix H - National Park Service Statement of Findings for Wetlands
Author
          Federal Railroad Administration, District Department of Transportation, Virginia Department of Rail and Public Transportation

Subject
                    Environmental Protection

**Keywords:** Long Bridge Project FEIS/ROD: Appendix H - National Park Service Statement of Findings for Wetlands

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