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Roller Bearing Temperature Measurements on Double-Stack Container Cars

This report describes the test methods, operations, and results obtained from monitoring roller bearing temperatures on double-stack container cars and conventional cars in revenue service train operations. The purpose of the testing was to determine whether roller bearings on double-stack cars...

Ultrasonice Railroad Wheel Inspection Using EMATs

This is report number 18 in a series covering the research performed by the National Institute of Standards and Technology (formerly National Bureau of Standards) for the Federal Railroad Administration. This issue collects seven reprints and preprints of papers written by the Fracture and...

Recent Developments in Railroad Safety Research

[From the Preface] This report is a summary of the railroad safety research conducted over the seven-year period from 1981 through 1987. It does not include all of the research and development activities undertaken but rather is considered representative of the work done. Many projects were...

Rail Garrison - Vehicle Stationary Vibration Tests

The United States Air Force (USAF/BMO) requested support from the Federal Railroad Administration (FRA) to assist in technical issues related to the development of the Peacekeeper Rail Garrison Program. During operation of the Rail Garrison train, the consist will stop at various locations to...

Laboratory Investigation of Roller Bearing Damage Due to Impact

This report presents the results of a two phase testing program to measure the strains in the roller separators (cages) of a bearing during impact loading. The impact loading is similar to the impacts encountered during in-service operations with flat spots on the wheels. The first phase of the...

Freight Train Speed Control on the Northeast Corridor: Final Report

This report presents results from an analytic study of the transient draft and buff forces which can be developed during the braking of long freight trains. A wide variety of braking conditions were considered. The work was conducted to provide guidance in the establishment of optimum Automatic...

1988 Research and Development Program

[From the Introduction] The Office of Research and Development formulates anticipatory and responsive technical programs, institutes projects and conducts the research, development, test and evaluation activities necessary to promote and ensure the safe performance of railroad equipment, track,...