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49 CFR Part 246: Certification of Signal Employees
FRA is establishing regulations for the certification of signal employees, pursuant to the authority granted in section 402 of the Rail Safety Improvement Act of 2008 RSIA)
49 CFR Part 245: Certification of Dispatchers
FRA is establishing regulations for the certification of dispatchers, pursuant to the authority granted in section 402 of the Rail Safety Improvement Act of 2008 RSIA)
A 3D Scanning Method to Measure Concrete Crosstie Geometry
The Federal Railroad Administration sponsored Kansas State University (K-State) in research to improve the design and performance of crossties. K-State used a Creaform HandySCAN 700 3D hand-held scanner to scan the surface of crossties removed from service to a spatial resolution of about 1 mm,...
Mitigation of Differential Movement at Railway Transitions for U.S. High-Speed Passenger Rail and Joint Passenger/Freight Corridors
To address the need to minimize differential movement at railway transitions for joint high-speed passenger and freight routes in the U.S., this research study identified and studied three problematic bridge approaches near Chester, PA, along Amtrak’s Northeast Corridor line and another two on...
Ballast Fouling Measurement Tool – Phase II
Researchers developed a second-generation RAdar Ballast Inspection Tool (RABIT) using ground-penetrating radar (GPR) for use by track inspectors. This system is much lighter (26 lbs/11.8 kg) than its predecessor (63 lb/29 kg) and is truly portable. It has a single bi-static antenna pair that...