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52550
  
  

  3
May
2017
Technical Reports
Quantification of the Sensitivity of Two Prevalent Track Inspection Systems
Author
          Federal Railroad Administration

Subject
                    Rail and Infrastructure Integrity

**Keywords:** Track inspection, inspection systems, inspection methodologies, optimal inspection, risk-based inspection, signal detection theory
**Abstract:** This report uses signal detection theory to quantify the sensitivity of two common track inspection systems (manual visual inspection via a hi-rail vehicle and automated track...
Report Number
              DOT/FRA/ORD-17/03

  Office
              RDI-21
    4
Apr
2014
Technical Reports
Quantification of the Effectiveness of Handheld Equipment for Ground Verification of Detected Rail Internal Defects
Author
          Leith Al-Nazer (Federal Railroad Administration), Dr. Thomas Raslear (Federal Railroad Administration), Lucas R. Welander (Transportation Technology Center, Inc.)

Subject
                    Rail and Infrastructure Integrity,
                    Track,
                    Tracks & Structures

**Keywords:** Ultrasonic phased arrays, conventional ultrasonic, rail flaw sizing, nondestructive testing
**Abstract:** The objective of this project was to quantify the effectiveness of the rail inspection ground verification process.  More specifically, the project focused on comparing the...
Report Number
              DOT/FRA/ORD-14/07

  Office
              RRD
    18
Oct
2013
Technical Reports
Feasibility Study of Fiber-Optic Technology for Broken Rail Detection
Author
          Matthew D. Holcomb and W. David Mauger

Subject
                    Rail and Infrastructure Integrity,
                    Track,
                    Tracks & Structures

**Keywords:** Fiber Optic, Broken Rail, Acoustic, Seismic, Rail Break, Wayside Systems
**Abstract:** This report describes the activities and presents the results of a feasibility study to examine the viability of using fiber-optic acoustic technologies to detect broken rails in...
Report Number
              DOT/FRA/ORD-13/44

  Office
              RRD
    1
Dec
2006
Technical Reports
Proof-of-Concept Demonstration: Controlling Rolling Contact Fatigue with Top of Rail Friction Control
Author
          Proof-of-Concept Demonstration Controlling Rolling Contact Fatigue with Top of Rail Friction Control

Subject
                    Rail and Infrastructure Integrity

**Keywords:** Top of Rail, Rolling Contact Fatigue, Friction Modifier, Dye Penetrant
**Abstract:** A proof of concept demonstration was conducted on two curves to demonstrate the effectiveness of wayside based top of rail (TOR) friction control in reducing occurrence and growth...
Office
              RRD
    3
May
2004
Safety Advisories
Addresses recommended safety practices and reviews existing requirements for the protection of roadway workers from traffic on adjacent tracks and to heighten awareness to prevent the inadvertent fouling of track when on-track safety is not provided

Subject
                    Rail and Infrastructure Integrity,
                    Signal and Train Control,
                    Track

**Keywords:** Track; roadway worker rule; adjacent tracks; large-scale; controlled track

Safety Advisory Number
              2004-01

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