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[From the Introduction] This report represents the Federal Railroad Administration's findings in the investigation of railroad employee fatalities during 1981. Not included are fatalities that occurred during train operation accidents; these are reported under another type of investigation. The...
[From the Introduction] This report represents the Federal Railroad Administration's findings in the investigation of railroad employee fatalities during 1980. Not included are fatalities that occurred during train operation accidents; these are reported under another type of investigation. The...
This report reviews the status of railway electrification in North America and selected countries worldwide, for the period June, 1980 through June, 1981. Included in the report are updates on the extent of construction of electrification; research completed on feasibility studies and technical...
This report describes the performance tests conducted on a pair of prototype radial axle trucks developed by GSI. The trucks tested were purchased from GSI by Amtrak and tested by FRA as a joint FRA/Amtrak project. The results of this test show that, as configured for this test, the trucks...
A pair of prototype radial-axle passenger trucks was tested at the Transportation Test Center, Pueblo, Co. With steering cross-links to provide yaw-angle compliance and axle stability, these trucks can execute axle radial alignment when negotiating curves; primary suspension is made up of separate...
Railroad track structure can buckle if excessive compressive force is developed due to a temperature increase. The resulting misalignment can be a significant cause of train accidents. There is no practical method for measuring the longitudinal force without disturbing the track. Physical phenomena...
This report presents production volumes, storage capacities, shipment quantities, containers used for highway and rail shipments, general commodity flow patterns and disposal sites and capabilities for 16 hazardous materials; an overview of emergency response guidelines and resources available to...
The purpose of the research program on the mechanics of ballast compaction is to determine the influence of mechanical compaction on the ballast physical state and its consequence on the performance of the track structure. This report, which is one of a series for this project, presents the results...
This report summarizes the results of research on the mechanics of ballast compaction. Details are provided in four preceding reports. The scope of this summary includes: 1) a description of ballast physical state, 2) methods developed for measuring the physical state in-situ, 3) the effects of...
This report describes a preliminary series of laboratory tests which attempt to simulate some of the effects of maintenance procedures and traffic on the physical state of ballast as measured by the ballast density test, plate load test, and lateral tie push test. The first part of the report...