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1
Sep
2017
Research Results
Bridge Approach Remedies Implemented at Western Mega Site
Subject
Bridge and Structures Safety
Keywords: Heavy axle load (HAL), track transition, bridge approach
Abstract: As part of the heavy axle load (HAL) revenue service mega site testing program, the Transportation Technology Center, Inc. (TTCI) has worked closely with the Union Pacific...
Report Number
RR 17-10
Office
RDI-21
26
May
2017
Research Results
Industry Survey of Bolsters and Side Frames Removed from Service
Subject
Best Practices,
Facilities & Test Equipment,
Rolling Stock
Keywords: Bolster, side frame, casting, survey, steel
Abstract: Transportation Technology Center, Inc. (TTCI) conducted an industry survey of defective bolsters and side frames removed from service. Scrapped components (approximately 70...
Report Number
RR 17-07
Office
RDI-22
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
2
Mar
2016
Other Reports
Section 610 Periodic Review of Railroad Accidents/Incidents: Reports Classification and Investigations (49 CFR Part 225)
Subject
Accident Investigations,
Best Practices
Keywords: economic impact
Abstract: The purpose of this document is to provide information and further details on the determination of the economic impact on small entities of 49 CFR Part 225, Railroad Accidents/...
Office
RRS
9
Jun
2015
Technical Reports
Campaign Monitoring of Railroad Bridges in High-Speed Rail Shared Corridors using Wireless Smart Sensors
Subject
Bridge and Structures Safety
Keywords: Campaign Monitoring of Railroad Bridges in High-Speed Rail Shared Corridors using Wireless Smart Sensors; Railroad bridge safety; bridge performance monitoring; wireless sensors; campaign monitoring
Abstract: This research project used wireless smart sensors to develop a cost-effective and practical portable structural health monitoring system for railroad bridges in North America. The...
Report Number
DOT/FRA/ORD-15/19
Office
RDI-21