General

Mechanical Impedance Evaluations of the Kansas Test Track: Pretraffic and Posttraffic Tests

The Kansas Test Track (KTT) was comprised of nine different track systems whose dynamic response was measured in two series of impedance tests. Pretraffic impedance testing was done in 1973, before the KTT was opened to traffic, and a second (posttraffic) test series was carried out in 1975...

Measurement and Correlation Analysis Plan for Concrete Tie and Fastener Performance Evaluation

This report was prepared as part of the Improved Track Structures Research Program sponsored by the Office of Rail Safety Research of the Federal Railroad Administration. The report presents an experiment plan and a correlation methodology through which the long-term performance of concrete tie...

Lightweight Intermodal Flatcar Evaluation Program Volume II: Test Results Report (Including Appendix A -Transducer Locations)

The Lightweight Flatcar (LWFC) Evaluation Program was conducted to provide a comparative evaluation of the dynamic performance of two prototype skelton or lightweight flatcars with a conventional TTAX flatcar. For this purpose, measurements of the acceleration response of the entire vehicle system...

Lateral Resistance of Some New and Relay Red Oak Crossties

To explore the effect of in-service use, comparative lateral resistance tests were performed on eight red oak crossties—four 24-year-old relay (used) ties and four new ties. One end of each tie was tested individually and the other was tested in a four-tie-group test. The ties were tilted to a 1 in...

Handbook for Railroad Track Stabilization Using Lime Slurry Pressure Injection

This handbook includes chapters dealing with the technology of lime injection, surface and subsurface soil exploration and laboratory testing, environmental considerations and safety precautions. In addition, there are appendices which provide state-of-the-art specifications for lime slurry...

Evaluation of Signal/Control System Equipment and Technology: Task 3 - Standardization, Signal Types, Titles

This report analyzes and summarizes current signal types and associated aspects, titles and indications employed by U. S. Railroads over which Amtrak operates as well as by several foreign railroads. A review of the historical development of signal technology is presented. The report concludes...

Evaluation of Signal/Control System Equipment and Technology: Task 2 - Status of Present Signal/Control Equipment

[From the Preface] This report results from research supported by the Department of Transportation, Federal Railroad Administration, Office of Research and Development, for the following seven separate but interrelated tasks under Contract DOT-FR-773- 4236: "Evaluation and Assessment of Signal/...

Engineering Data on Selected High Speed Passenger Trucks (Reprint)

The purpose of this Project is to compile a list of high speed truck engineering parameters for characterization in dynamic performance modeling activities. Data tabulations are supplied for trucks from France, Germany, Italy, England, Japan, U.S.S.R., Canada and The United States.

Effects of Rail Vehicle Size: A Special Bibliography

This document contains abstracts of documents related to the size, weight, or length of rail vehicles. These abstracts are drawn from the magnetic tape files of the Railroad Research Information Service (RRIS). These files are comprised of abstracts of technical reports, journal articles, and...

Effect of Torsional Fastener Resistance on the Lateral Response of a Rail-Tie Structure

The use of the classical beam bending equations for the analysis of the track response in the lateral plane is of questionable validity; when the used fasteners exhibit a noticeable torsional resistance. To remedy this situation, recently a variety of other track equations were proposed and used....

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General