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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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1 Nov 1986

Technical Reports

Experimental Investigations of Dynamic Buckling of CWR Tracks

Author
Federal Railroad Administration; G. Samavedam; A. Kish; D. Jeong

Subject Track, Tracks & Structures, Track/Train Interactions

Keywords: Track buckling, buckling, welded track

Abstract: Thermal Buclking of railroad tracks in the lateral plane is an important problem in the design and maintenance of continous welded rail (CWR) tracks. The severity of the problem...

Report Number
DOT/FRA/ORD-86/07
Office
RRD

1 May 1986

Technical Reports

Inductive Interference in Rapid Transit Signaling Systems, Volume I: Theory and Background

Author
F. Ross Holmstrom

Subject Signal and Train Control

Keywords: Automatic Train Control Systems, Chopper-Controlled Propulsion Systems, Audio-Frequency Signaling Systems

Abstract: This report analyzes the problem of inductive interference with audio-frequency signaling caused by chopper-controlled propulsion systems on rapid transit vehicles. After...

Report Number
UMTA-MA-06-0153-85-7
Office
RRD

1 Feb 1986

Technical Reports

Laboratory and Field Testing of NYCTA Power Frequency Track Circuits

Author
M. D. West, F. R. Holmstrom

Subject Signal and Train Control

Keywords: AC Propulsion Control Systems; Electromagnetic Interference; Power Frequency Signaling System

Abstract: This report addresses the possible electromagnetic interference between the electronic AC propulsion control systems and the signaling and train control systems. The potential...

Report Number
UMTA-M A-06-0153-85-12
Office
RRD

1 Nov 1985

Technical Reports

Conductive Interference in Rapid Transit Signaling Systems, Volume I: Theory and Data

Author
F. Ross Holmstrom

Subject Signal and Train Control

Keywords: Circuits, Impedance, Propulsion Systems, Signaling Equipment, Substations

Abstract: The purpose of this report is to summarize the results of a comprehensive program that has been pursued to delineate all aspects of conductive interference (Cl) in rail transit...

Report Number
UMTA-MA-06-0153-85-5
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