Keywords: Track research, track inspection, inspection, automated inspection, automation-aided inspection, railroad, track safety, safety, human factors, passenger rail, systems-theoretic process analysis, STPA, STAMP, systems-theoretic accident model and process,
Keywords: Ground Penetrating Radar, GPR, substructure parameters, track condition, track substructure degradation, track
Keywords: Wheel/rail interface, W/R, friction, angle of attack, AoA, traction curves, instrumented wheelset, IWS, rolling contact fatigue, wear, tribometer
Abstract: The wheel/rail (W/R) interface experiences variable friction conditions during in-service operation. This is due mainly to the application of top-of-rail friction modifiers (...
The wheel/rail (W/R) interface experiences variable friction conditions during in-service operation. This is due mainly to the application of top-of-rail friction modifiers (...
Keywords: Concrete tie, rail seat deterioration, RSD, rail seat abrasion, laboratory testing, detection, inspection, gage restraint measurement system, GRMS, track geometry
Abstract: Rail seat deterioration (RSD) is a loss of concrete in the rail seat area of concrete ties that may compromise safety by increasing track gage, reducing fastener toe load, and...
Keywords: ballast, fouled ballast, track, geometry
Abstract: The bulletin clarifies the application of Title 49 Code .of Federal Regulations (CFR) § 213.103 (Ballast; general). All affected personnel are to utilize this bulletin as guidance...