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Next Generation Track Circuits

The Federal Railroad Administration (FRA) sponsored a project from June 8, 2015, through June 7, 2017, in which Transportation Technology Center, Inc. (TTCI) investigated concepts and technologies for next generation track circuits (NGTC) that could support future methods of train control. Future...

Feasibility of Track Energy Metric

Identifying track locations with rapid degradation potential and derailment risks due to structural failure is important for the railroad industry. Among the tools used to identify degradation are Track Quality Indexes (TQIs), a track geometry-based metric to characterize overall track quality....

HQ-2016-1136 (Finalized)

On June 3, 2016, at 12:11 p.m., PDT, a westbound Union Pacific Railroad (UP) loaded petroleum crude oil unit train, ONETU 02, derailed 16 loaded crude oil tank cars on single main track at UP Milepost (MP) 69.3 at Mosier, Oregon. The 16 derailed tank cars were located at positions 19 through 34...