General

Validation of Track Geometry Input to the Vibration Test Unit (VTU) and the Endurance Capability of the VTU

This report describes a series of tests conducted at the Transportation Test Center, Pueblo, Colorado, to validate two forms of track geometry inputs to the Vibration Test Unit (VTU) in the Rail Dynamics Laboratory, capable of reproducing actual revenue track conditions. The first form consisted of...

Task Force Report: Rail Failure Evaluation

[From the Executive Summary] On November 12, 1983, an Amtrak passenger train operating on Missouri Pacific track in the vicinity of Marshall, Texas, derailed at a speed of between 70 and 75 miles per hour as it traversed a temporary track repair. The alloy rail over which the train was passing...

Tank Car Damage Assessment Procedure Study

The study concerns the rupture of damaged tank cars which have been involved in railroad accidents. In this regard, a series of impact tests using the FRA/BRL Drop Hammer Facility was performed. The tests consisted of the creation of controlled damage to flat steel plates which had properties...

Summary of Accidents Investigated by the Federal Railroad Administration: Calendar Year 1982

The 1982 Summary of Accidents Investigated by the Federal Railroad Administration (FRA) includes 183 railroad accidents. This summary provides the following information: the railroad(s) involved; the location and the time of the accident; the type of railroad accident; the method of operation and...

Strain-Life Fatigue Analysis

The strain-life approach to characterize the fatigue behavior of materials and its applications to railroad equipment design have been investigated. A logical means of accounting for local plastic strains, which are the cause of fatigue failures, has been given, and constitutive relations between...

Safety Margin Testing of a 70-Ton Boxcar with Shifting Plywood Lading: Test Results Data

Tests were performed at the Transportation Test Center, Pueblo, Colorado, in a joint Association of American Railroads (AAR) and Federal Railroad Administration (FRA) effort in the April-May-June period of 1982. AAR objectives were to perform a "pilot" test on the Vibration Test Unit (VTU) as a...

Safety Margin Testing of a 70-Ton Boxcar with Shifted Plywood Lading: Summary Results

Report Number 12: Metallurgical Observations of 21 Plate Steel Samples Taken From Seven Tank Cars Involved in the April 8, 1979 Railroad Accident at Crestview, Florida

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...

High Performance, High Cube Covered Hopper Car Program, Base Car Dynamic Performance Tests: Volume 1 - Rock-and-Roll and Bounce

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....

Development of Hybrid Cost Functions From Engineering and Statistical Techniques: The Case of Rail - Phase II Final Report - Executive Summary

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...

« First
‹‹
…
331
332
333
334
335
336
337
338
339
…
››
Last »

USA Banner

General