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As part of the co-operative Track-Train Dynamics High Performance, High Cube Covered Hopper Program, Transit America provided a prototype car - the HI CUBE 2000 for dynamic performance tests under the program's performance guidelines. This new design car was tested to evaluate its dynamic...
This report presents a summary of the dynamic performance tests of a 4750 cubic foot capacity high cube covered hopper car. All the tests were conducted at the Transportation Test Center in Pueblo, Colorado. Results of the reduction and analysis of test data for the rock-and-roll, pitch-and-...
Motivated by the occurrence of a long-running rail web fracture in service, dynamic fracture mechanics research was undertaken to (1) quantify the crack driving force due to the residual stresses induced by roller straightening operations, (2) determine dynamic fracture toughness values for rail...
The regulations pertaining to the classification of hazardous materials in rail transportation were examined for their robustness in identifying hazards, the classification of hazardous materials, and the utility of these classifications to those who must deal with rail accidents involving...
Residual stress and texture were characterized in the rim of a cast steel railroad wheel, using both an electromagnetic-acoustic transducer (EMAT) and a piezoelectric transducer. Orthogonally polarized shear-horizontal waves were propagated through the thickness of the rim, and arrival times...
[From the Introduction] This report presents the Federal Railroad Administration's findings in its investigation of 36 railroad employee fatalities suffered during 1985. Not included are the employee fatalities that occurred as a result of train derailments, collisions, or rail-highway crossing...
[From the Introduction] Railroads are required to file monthly accident/incident reports with the Federal Railroad Administration's (FRA) Office of Safety in accordance with 49 CFR 225. Bulletin 155 summarizes reportable accidents/incidents that occurred in the United States during 1986.
EMATs offer unique characteristics that appear to be advantageous for inspection of railroad rails. These characteristics include the features that EMATs do not require a liquid couplant or physical contact with the object being tested, they can generate ultrasonic wave modes that cannot be...
The truck productivity improvements derived from the 1982 Surface Transportation Assistance Act (STAA'82) and the possible introduction of a Longer Combination Vehicle (LCV) network will have a negative impact on the U.S. railroad industry, trucking's primary competitor. This report presents the...