USA Banner
  U.S. flag
              An official website of the United States government Here's how you knowOfficial US Government Icon
              **Official websites use .gov**A **.gov** website belongs to an official government organization in the United States.
            Secure Site Icon
              **Secure .gov websites use HTTPS**
                  A **lock** ( A locked padlock ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. 
 U.S. Department of Transportation Icon United States Department of Transportation
 Search DOT
            Search
                        About FRAAbout FRA
  

        
              Overview
                Organization
                Program Offices
                Resource Center
                Web Policies and Notices
                Contact Us
                Communications
                Governmental AffairsFeatured
  

        
              Bipartisan Infrastructure Law Information from FRA
                Careers
                Leadership Profiles
                Organizational Chart
                Newsroom
                Press Releases
                Speeches
                Fact Sheets
                TestimonyRailroad SafetyFeatured
  

        
              Train Horn Rule/Quiet Zones
                Public Blocked Crossings Incident Reporter
                Drug & Alcohol
                Safety Data
                C3RS
                High-Hazard Flammable Train Route AssessmentRailroad Safety
  

        
              Overview
                Railroad Crossing Safety & Trespass Prevention
                Accident Data & Reporting, Investigations
                Divisions
                Partnerships & ProgramsRail Network DevelopmentFeatured
  

        
              High-Speed Rail
                Amtrak
                Environmental Reviews
                GIS Maps
                RuralRail Network Development
  

        
              Overview
                Passenger Rail
                Freight Rail
                Environment
                Planning
                International
                Maps & Data
                Training & GuidanceResearch & DevelopmentFeatured
  

        
              R&D Current Projects
                Positive Train Control
                Hazardous Materials
                Highway-Rail Grade Crossing
                Close Call Reporting
                Broad Agency AnnouncementResearch & Development
  

        
              Overview
                Program Areas
                R&D ReportsLegislation & RegulationsFeatured
  

        
              FAST Act
                National Rail Plan
                Proposed State Rail Plan
                Civil PenaltiesLegislation & Regulations
  

        
              Overview
                Legislation
                Regulations & Rulemaking
                Buy AmericaGrants & LoansFeatured
  

        
              FRA Discretionary Grant Program Tool
                Discretionary Grant Calendar
                Railroad Capital Project Guidance
                FRA Webinars
                DOT GrantsGrants & Loans
  

        
              Overview
                Grant Programs
                Applying for Grants
                Resources for Grant Recipients
                Training & GuidanceFRA eLibraryeLibrary
  

        
              Accidents & Fatalities
                Compliance
                Conferences & Presentations
                Emergency & Safety
                Enforcement & Litigation
                Publications & Policy
                Reports
                OtherMenu Home


            
            Document Type
      Accidents & Fatalities
  (5)Compliance
  (6)Emergency & Safety
  (3)Reports
  (33)
Subjects
      Show all
  (1644)Accident Investigations
  (177)Positive Train Control
  (116)Human Factors
  (108)Highway-Rail Grade Crossings
  (99)Signal and Train Control
  (93)Hazardous Materials
  (85)Evaluation
  (77)Passenger Rail
  (57)(-)
Track
  (47)Grade Crossing Technology
  (43)Operating Practices
  (35)Freight Operations
  (34)Highway-Rail Grade Crossing Warning Systems
  (34)Track/Train Interactions
  (34)Maglev
  (32)Facilities & Test Equipment
  (26)Rolling Stock
  (25)High-Speed Passenger Rail
  (24)Safety Performance Measures
  (23)Train Horn Noise
  (23)Train Control
  (23)Amtrak
  (22)Crashworthiness - Passenger Equipment
  (21)Safety Advisories
  (21)Environmental Protection
  (18)Accident Reduction
  (18)Motive Power and Equipment
  (16)Tracks & Structures
  (16)Grants & Financial Assistance
  (15)Braking Systems
  (13)Best Practices
  (13)Communications
  (13)Employee Fatalities
  (12)Safety Regulatory Analysis
  (12)Emergency Preparedness
  (11)Grade Crossing and Trespass Outreach/Education
  (11)Grade Crossing Modeling and Simulation
  (11)Rail and Infrastructure Integrity
  (10)Railroad Employees
  (10)Risk Reduction Program
  (8)USDOT National Highway-Rail Crossing Inventory
  (8)Bridge and Structures Safety
  (7)Work Schedule & Sleep Patterns
  (7)Locomotive Standards (Safety & Noise)
  (7)Automation
  (7)Grade Crossings
  (7)Trespasser Programs
  (6)Collision
  (6)Occupant Protection
  (5)Fatigue Management
  (4)Industrial Hygiene
  (4)Railroad Safety Technical Training Standards
  (4)Sleep Disorders
  (4)Program Evaluation
  (4)Fiber Optic
  (4)Testing
  (4)Cellular Telephones/Other Electronic Devices
  (3)Railroad Safety Program Management
  (3)Remote Control Locomotive Operations
  (3)Crashworthiness - Tank Car
  (3)Switching Operations
  (3)Social & Economic Impacts
  (3)Risk Assessment
  (3)Analysis
  (3)Grade Crossing Pedestrian Safety
  (3)Drug and Alcohol Program
  (2)Emergency Notification Systems
  (2)Enforcement
  (2)Hours of Service
  (2)Intelligent Railroad Systems
  (2)Occupational Noise Exposure
  (2)Railroad System Issues
  (2)Roadway Worker Protection
  (2)Buy America
  (2)Autonomous
  (2)Safety Culture
  (2)Trespass Countermeasures
  (2)Automated Track Inspection Program (ATIP)
  (1)Continuous Welded Rail
  (1)Railroad Safety Information Management
  (1)Railroad System Oversight
  (1)Right-of-Way
  (1)Roadway Maintenance Machine Safety
  (1)Railroad Rehabilitation & Improvement Financing (RRIF)
  (1)Statutory Mandates
  (1)Tourist Railroads
  (1)Budget
  (1)Crew Resource Management (CRM)
  (1)Heavy Axle Load (HAL)
  (1)Capital Planning
  (1)Artificial Intelligence
  (1)Commuter
  (1)Laboratory
  (1)Security
  (1)Short Line Railroads
  (1)Shared Corridor
  (1)
                
                eLibrary Search
**Your Selections:**Reset(-)
Track
  (47)
The FRA eLibrary contains all the documents that are found throughout the FRA Public Website. Multiple pages on the website may link to the same eLibrary item based on its set of metatdata.

**Can I find All FRA Documents in the Library?**
Some "documents" may not appear here for the following reasons:

Document resides on an external site for the record of source, links to the document are provided in context but not in the library as FRA does not maintain this record. This document lives on another website.
	Document has not yet been assigned keywords.
	Document is historical and has been removed from library to avoid confusion with current publications.
	Document is public affairs & policy related, such as press releases, speeches, testimony, or fact sheet. These press-related documents can now be found in the FRA Newsroom.
	Document is related to rules and notices. This information can now be found on the Rulemakings search and the Notices search, respectively.Refine Your Search
            **To search an exact document title or key phrase, place quotations around the text. Example: "U.S. Government Grade Crossing Research & Stakeholder Engagement" Entering keywords without quotations will search the eLibrary for all occurrences of the keywords.**
            

Dates
  Date fromDate toSort by
                    
Sort by Date (Most Recent)Sort by Title (A-Z)Items per page
                    
52550
  
  

  10
May
2022
Research Results
Rail-Mounted Strain Gauges for Tie Reaction Measurement Under Dynamic Loading
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Strain gauge, calibration, tie reaction force, tie support condition, Differential Shear Strain, DSS, track, wheel load, railroad

Report Number
              RR 22-08

  Office
              RDI-21
    7
Jan
2022
Technical Reports
Fouled Ballast Waiver Operations and Results
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Fouled ballast performance, track geometry, degradation, trending, long-term wayside monitoring, waiver operations, enforcement modes, track, Autonomous Track Geometry Measurement System, ATGMS, track

Report Number
              DOT/FRA/ORD-22/01

  Office
              RDI-21
    27
Sep
2021
Research Results
Machine Vision Data Products for the Automated Track Inspection Program
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Automated Track Inspection Program, machine vision, data products, imaging systems

Report Number
              RR 21-20

  Office
              RDI-21
    26
May
2020
Technical Reports
Reference-Free Estimates of Railroad Bridge Displacement under Revenue Service Traffic
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Railroad bridge safety, bridge performance monitoring, reference-free displacements estimation, campaign monitoring

Report Number
              DOT/FRA/ORD-20/21

  Office
              RDI-21
    10
Feb
2020
Technical Reports
Cant Excess for Freight Train Operations on Shared Track
Author
          Federal Railroad Administration

Subject
                    Track

**Keywords:** Cant excess, cant deficiency, superelevation, shared track
**Abstract:** Transportation Technology Center, Inc., with Federal Railroad Administration support, conducted a study to review and summarize current practices and issues related to shared...
Report Number
              DOT/FRA/ORD-20/05

  Office
              RDI-21

  Pagination
    1
              2
              3
              4
              5
              6
              7
              8
              9
                          ...
                          ›
            ››
                          »
            Last » U.S. DEPARTMENT OF TRANSPORTATION

**Federal Railroad Administration**

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

202-366-4000Subscribe to email updates
                    About Us
  

        
              About FRA
                Careers
                Contact Us
                FRA Civil Rights
                Doing Business with FRA
                Grants and Financial Assistance
                Safety Management TeamsAreas of Interest
  

        
              Bipartisan Infrastructure Law
                Safety Data
                Buy America
                Operation Lifesaver
                Railroad Safety Advisory Committee
                FRA Secure Area
                Proactive DisclosureI Am A...
  

        
              Railroad Traveler
                Railroad Inspector
                Reporter
                Educator/StudentPolicies, Rights, Legal
  

        
              About DOT
                Budget and Performance
                Civil Rights
                FOIA
                Information Quality
                No FEAR Act
                Office of Inspector General
                Privacy Policy
                USA.gov
                Vulnerability Disclosure Policy
                Web Policies and Notices
                Web Standards