USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General

Show Effective Date
Off
Subscribe to RSS

Cant Deficiency Test Safety Monitoring Using Accelerometer Measurements

The FRA has performed high cant deficiency curving tests on several passenger trains using instrumented wheels to measure wheel forces for comparison to derailment safety criteria. Data from these tests show that the vehicle overturning safety criterion which prevents wheel lift is the most...

Accident/Incident Bulletin No. 157: Calendar Year 1988

[From the Introduction] Railroads are required to file monthly accident/incident reports with the Federal Railroad Administration's (FRAj Office of Safety in accordance with 49 CFR 225. Bulletin 157 summarizes reportable accidents/incidents that occurred in the United States during 1988.

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...