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This is the second of two reports intended to give information on and metallurgical characterization for each of 21 plate samples taken from tank cars involved in an accident at Crestview Florida in April 8, 1979. The earlier report contains the results of a field investigation, which gives...
A series of dynamic performance tests were conducted on a 100-ton high cube (4750 cu. ft.) covered hopper car. This report describes the test program concerning the rock-and-roll and bounce tests, which were conducted on shimmed track sections at the Transportation Test Center in Pueblo Colorado....
Cost analysis is important in every transportation industry, to the firms or agencies which provide service, to regulatory bodies, and to public policy makers. In the past, railroad cost analyses have been of two types: 1) statistical analyses of aggregate cross-section data from a variety of firms...
Cost analysis is important in every transportation industry, to the firms or agencies which provide service, to regulatory bodies, and to public policy makers. In the past, railroad cost analyses have been of two types: 1) statistical analyses of aggregate cross-section data from a variety of firms...
The energy consumption of BART transit cars was measured with and without regeneration during the period 25 August - 2 September 1981. The test data was then compared with the predictions of different energy management models currently in use for transit system studies. This report presents the...
An E44 electric locomotive of 5000 hp, 6 axles and 6 motors was used as a test bed to evaluate full scale use of 6 separate high power DC to DC choppers for propulsion. The normal phase control rectifier equipment was removed and replaced by a DC link at 2000 volts as the source of energy to the...
The railroads, for whom ballast has long been a subject of serious study, have sought to develop criteria for choosing, maintaining, and predicting ballast performance in revenue track. During 1976-1982, two studies (Ballast I & II) were conducted on sections of the FAST loop at the...
The available test data collected on radial freight trucks has been reviewed and evaluated for possible future use in establishing the safety performance characteristics of these trucks. Documentation of tests conducted by the railroads, equipment suppliers, FRA and AAR is reviewed to determine...
Rail descriptive and defect occurrence information from the Burlington Northern and Atchison, Topeka and Santa Fe railroads is given and analyzed. Track data includes information on track type, when laid, maintenance schedules, etc. The objectives and approaches of several comparative analyses are...