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eLibrary Search

The FRA eLibrary contains all the documents that are found throughout the FRA Public Website. Multiple pages on the website may link to the same eLibrary item based on its set of metatdata.

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22 Feb 2013

Technical Reports

Next-Generation Foundations for Special Trackwork – Phase I

Author
Xinggao Shu, David Davis, and Muhammad Akhtar

Subject Track, Tracks & Structures, Track/Train Interactions

Keywords: Dynamic load environment, special trackwork frog foundations, wheel-rail impact, modeling

Abstract: This report reviews the dynamic load environment and failure modes of special trackwork frog foundations. Key measurements taken under a 39,000-pound wheel load traffic at the...

Report Number
DOT/FRA/ORD-13/10
Office
RRD

1 Dec 1998

Technical Reports

Effect of Track Twist on Vehicle Dynamic Performance: Final Report

Author
Huimin Wu

Subject Track/Train Interactions

Keywords: Performance-Based Track Safety Limits, Transportation Technology Center, TTC

Abstract: Results of tests conducted at the Transportation Technology Center (TTC), Pueblo, Colorado, indicate that vehicle response to track twist varies significantly with car type....

Report Number
R-825
Office
RRD

1 Oct 1985

Technical Reports

1985 Track Survey: National Railroad Passenger Corporation (Amtrak)

Author
Office of Safety, Federal Railroad Administration

Subject Track/Train Interactions

Keywords: track gage, cross level, wrap, profile, alignment, curvature

Abstract: From September through December 1984, the FRA conducted an intensive survey of all mainline track utilized by Amtrak (see fig. 1). Three automated track geometry railcars -- the...

Office
RRD

1 May 1983

Technical Reports

Determination of Residual Stresses in Rails

Author
Federal Railroad Administration; J.J. Groom

Subject Fatigue Management, Track, Tracks & Structures, Track/Train Interactions

Keywords: Fatigue, Rail stress

Abstract: A destructive sectioning technique for measuring the complete three-dimensional residual stresses in a rail cross section was developed. The technique was applied to four tangent...

Report Number
DOT/FRA/ORD-83/05
Office
RRD

1 Apr 1980

Technical Reports

Identification and Evaluation of Off-Track Train Detection Systems for Grade Crossing Applications

Author
E. E. Nylund, P. C. Holtermann

Subject Grade Crossing Technology, Highway-Rail Grade Crossings, Track/Train Interactions

Abstract:

The study examined all potential train detection techniques which do not use the track, analyzing both point sensing and continuous sensing system approaches.

Report Number
FRA/ORD-80/32
Office
RRD