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52550
  
  

  13
Nov
2018
Research Results
Rail Temperature Control System for Improved Railway Safety
Author
          Federal Railroad Administration

Subject
                    Railroad System Issues

**Keywords:** passive control, thermal adsorption, steel railroad stress reduction, maximum temperature reduction, buckling
**Abstract:** Physical Sciences Inc. (PSI) has developed a tunable passive solution for limiting the maximum temperature of railroad track. The Rail Temperature Control System (RTCS)...
Report Number
              RR 18-15

  Office
              RDI-21
    9
Apr
2018
Technical Reports
Rail Base Corrosion and Cracking Prevention: Phase 2
Author
          Federal Railroad Administration

Subject
                    Rail and Infrastructure Integrity

**Keywords:** Corrosion, rail, rail base corrosion, coatings, corrosion testing, premature rail failure
**Abstract:** In March 2014, EWI was engaged by the Federal Railroad Administration to research rail treatments to prevent rail base corrosion in corrosive environments.  A coating system was...
Report Number
              DOT/FRA/ORD-18/09

  Office
              RDI-21
    15
Sep
2017
Technical Reports
Monitoring Longitudinal Rail Stress Using Diffuse Ultrasonic Backscatter
Author
          Federal Railroad Administration

Subject
                    Rail and Infrastructure Integrity

**Keywords:** stress in rail; ultrasonic transducers; ultrasound scattering; theoretical model of the scattering process; prototype devices for stress estimations in rail; laboratory and field tests
**Abstract:** In this report, research was conducted at the University of Nebraska-Lincoln pertaining to the use of ultrasound scattering from polycrystalline grains to estimate and monitor...
Report Number
              DOT/FRA/ORD-17/15

  Office
              RDI-21
    25
May
2017
Technical Reports
Evaluation of the Federal Railroad Administration’s Autonomous Track Geometry Measurement System Research and Development Program
Author
          Federal Railroad Administration

Subject
                    Rail and Infrastructure Integrity

**Keywords:** Evaluation, program review, needs assessment, funding, decision making
**Abstract:** This report evaluates the Autonomous Track Geometry Measurement System (ATGMS). It examines: 1) the extent of ATGMS usage, 2) what railroads think of ATGMS, 3) why ATGMS is not...
Report Number
              DOT/FRA/ORD-17/05

  Office
              RDI-21
    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

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