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5
Sep
2018
Technical Reports
Inspection of Concrete Ties Using Sonic/Ultrasonic Impact Velocity and Impact Echo Measurements
Subject
Testing
Keywords: Concrete, crossties, ties, Rayleigh waves, impact echo, impact velocity
Abstract: This report documents NDT Corporation’s development of a non-destructive system for inspecting the internal condition of concrete crossties using sonic/ultrasonic impact velocity...
Report Number
DOT/FRA/ORD-18/32
Office
RDI-21
21
Aug
2018
Accident Investigations
HQ-2018-1294 (Finalized)
Subject
Accident Investigations
Keywords: derailment; BNSF Railway; Devore, California; track; equipment
Abstract: ...
Accident Date
Accident Type
Derailment (DRM)
Railroad Name
BNSF Railway Co.
Location
Devore, CA
United States
Accident Number
HQ-2018-1294
Investigation Status
Finalized
20
Aug
2018
Technical Reports
Seismic Testing for Track Substructure Assessment
Subject
Testing
Keywords: Seismic testing, Spectral Analysis of Surface Waves, SASW, shear-wave velocity, Young’s modulus, stiffness, ballast, sub-ballast, track geometry
Abstract: The University of Illinois at Urbana-Champaign (UIUC) presented equipment, test procedure, and interpretation techniques to rapidly, non-invasively, and quantitatively measure the...
Report Number
DOT/FRA/ORD-18/30
Office
RDI-21
31
Jul
2018
Technical Reports
Low Solar Absorption Coating for Reducing Rail Temperature and Preventing Buckling
Subject
Track
Keywords: Solar absorption, inorganic coating, rail temperature, thermal stress, track buckling, zero-volatile organic content, VOC, rail neutral temperature, RNT
Abstract: This report documents Rutgers University’s research in the development and demonstration of an inorganic coating for reducing peak rail temperature to inhibit rail buckling. The...
Report Number
DOT/FRA/ORD-18/28
Office
RDI-21
20
Jul
2018
Technical Reports
Fiber Optic Availability and Opportunity Analysis for North American Railroads
Subject
Fiber Optic
Keywords: Fiber Optic Acoustic Detection, FOAD, North American railroads, safety improvements, Wayside Detection, Railroad Cost Benefits
Abstract: The Federal Railroad Administration (FRA) sponsored an evaluation conducted by Transportation Technology Center, Inc. (TTCI) regarding the opportunity and availability to use...
Report Number
DOT/FRA/ORD-18/23
Office
RDI-23