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This report uses signal detection theory to quantify the sensitivity of two common track inspection systems (manual visual inspection via a hi-rail vehicle and automated track geometry inspection). Quantifying the sensitivity of such systems can provide baseline input data for risk-based,...
This document delays the implementation dates in the final rule published November 7, 2014, because model training program developers alerted FRA they will not be able to timely produce model programs that an estimated 1,459 railroads and contractors are expected to use to comply with the rule’s...
FRA announces the fifty-seventh meeting of the RSAC, a Federal Advisory Committee (Committee) that develops recommendations on railroad safety regulations and other railroad safety issues through a consensus process. This meeting has been rescheduled from January 26, 2017, the previously announced...
The Kansas Test ~~rack (KTT) was comprised of nine .differen~tra'Cksystems,
, which were built on a: designed embankment. The KTT subgrade experienced prema.ture
failure in service, and KTT operations were terminated in June 1975 after six months
of operation.
A postmortem investigation of KTT...