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This report reviews electric and magnetic field (EMF) exposures from electrical transportation systems, including
electrically powered rail and magnetic levitation (maglev). Material also covered includes research concerning
biological effects of EMF exposure, with special emphasis on broad...
This report is the fourth in a series of engineering studies on railroad vehicle wheel
performance. The results of saw cut tests performed on one new and one used wheel
designed for a fleet of multiple unit (MU) power cars are summarized and analyzed.
Reconstructed residual stresses are computed...
The safety of magnetically levitated (maglev) and high speed rail (HSR) trains proposed for application in the United States is the responsibility of the Federal Railroad Administration (FRA). The characterization of electric and magnetic fields (EMF) produced by both steady (dc) and alternating...
In this pilot study, the effects of fatigue on the train handling performance and vigilance of four certified train service locomotive engineers was assessed while they operated the Federal Railroad Administration (FRA), Research and Locomotive Evaluator/Simulator (RALES). Subjects operated on an...
Experimental studies to maintain the safety of transporting hazardous material by rail have been extended to evaluate
the effectiveness of steel head shields for the protection of the contents of DOT Type 111 aluminum tank cars. These
studies comprised a series of full- and 1/5-scale model tests...
Elber's crack closure model is studied in relation to the results of laboratory
spectrum crack growth tests on compact tension specimens (CTS) fabricated from rail
steel. Comparison of model predictions with test results for crack growth life is
effected by means of an analysis of a center...
A guide for the scheduling of in-service tests of rail to detect defects is presented. The guide is designed for self-adaptation to changing track conditions, as reflected by the total rate of defect occurrence per test, the rate of “service” defect occurrences (i.e., defects found by means other...
Proposals are currently being developed for high-speed wheel-on-rail
passenger train service in several intercity corridors in the United States. These
proposals involve the application of foreign high-speed train technology, and
operation at speeds exceeding 125 mph. This report provides an...
The report describes the test series conducted to assess the thermal response of a small scale, cask-like test article to three different thermal environments: an 800 deg C, 30-min radiant heat environment; an 870 deg C, 100-min radiant heat environment; and an enclosed engulfing fire environment...