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14
Feb
2018
Technical Reports
Nuclear Magnetic Resonance Trackbed Moisture Sensor System
Subject
Track
Keywords: Soil moisture, foul ballast, scanning technology, measurement, signal detection and sensitivity, nuclear magnetic resonance
Abstract: In this initial phase, conducted from March 2015 through December 2016, Vista Clara and its subcontractor Zetica Rail successfully developed and tested a man-portable, non-...
Report Number
DOT/FRA/ORD-18/03
Office
RDI-21
29
Sep
2017
Technical Reports
A Survey of Wheel/Rail Friction
Subject
Track,
Tracks & Structures,
Track/Train Interactions
Keywords: Friction, friction management, lubrication, vehicle-track interaction, wheel-rail interaction v
Abstract: Friction has a huge influence on the vehicle/track interaction and yet it remains poorly understood, its consideration an afterthought in many simulation activities. This survey...
Report Number
DOT/FRA/ORD-17/21
Office
RDI-21
13
Jan
2017
Technical Reports
Weld Repair of Manganese Frogs for Enhanced Performance
Subject
Best Practices,
Rail and Infrastructure Integrity,
Track
Keywords: Reciprocating wire feed, constant voltage, Flux-Cored Arc Welding, heat-affected zone, radiographic testing, Shielded Metal Arc Welding, ultimate tensile strength, yield strength.
Abstract: When special trackwork contact surfaces (such as manganese-steel turnout frogs) become worn and damaged, they can be repaired to extend their lifetime, but current repair...
Report Number
DOT/FRA/ORD-17/01
Office
RRD
3
Jun
2016
Accident Investigations
(Pending)
Subject
Accident Investigations,
Braking Systems,
Hazardous Materials
Keywords: Accident Investigations, Braking Systems, Hazardous Materials, Crude-by-rail
Abstract: At 12:15 p.m. Pacific Daylight Time on Friday, June 3, 2016, a Union Pacific train, ONETU 02, transporting Bakken crude oil for U.S. Oil & Refining Company and operating on...
Accident Date
Accident Type
Derailment (DRM)
Railroad Name
Union Pacific
Location
Mosier, OR
United States
Investigation Status
Pending
7
Oct
2015
Research Results
An Alternative to Conventional Concrete Crossties for Bridge Approaches
Subject
Track
Keywords: crossties; concrete ties; heavy axle load
Abstract: Transportation Technology Center, Inc. (TTCI) is investigating an alternative crosstie design to conventional concrete crossties for bridge approaches. The project is being co-...
Report Number
RR 15-31
Office
RDI-21