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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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To search an exact document title or key phrase, place quotations around the text. Example: "U.S. Government Grade Crossing Research & Stakeholder Engagement" Entering keywords without quotations will search the eLibrary for all occurrences of the keywords.

1 Jun 1971

Technical Reports

Technological Innovation in Grade Crossing Protective Systems

Author
John B. Hopkins and Morrin E. Hazel

Subject Grade Crossing Technology, Highway-Rail Grade Crossings, Signal and Train Control

Keywords: train detection; microwave telemetry

Abstract:

This study describes limitations of innovative grade crossing protective systems (namely, cost) and provides guidelines for developing and using innovative systems. 

Office
RDI-23

1 Sep 1970

Technical Reports

Heat-Assisted Tunnel Boring Machines

Author
J. P. Carstens, W. R. Davison, C. A. Brown, A. R. Smith, F. J. McGarry

Subject Facilities & Test Equipment, Tracks & Structures

Keywords: Tunneling Machine Performance, Laser Technology, Excavation

Abstract:

A study was performed to determine: a) the increase in tunneling machine performance in hard rock resulting from heat weakening of the rock in advance of the tunneling machine...

Report Number
FRA-RT-71-63
Office
RDI-22

1 Oct 1969

Technical Reports

A Program Definition Study for Rail-Highway Grade Crossing Improvement

Author
David W. Schoppert

Subject Grade Crossing Technology, Highway-Rail Grade Crossing Warning Systems, Highway-Rail Grade Crossings

Keywords: protective devices; train operating costs; net benefits

Abstract:

This study describes the status of grade crossing inventories and improvement programs, assesses the cost of crossing improvements, and develops a 5-year research program.

Report Number
FRA-RP-70-2
Office
RDI-23

1 Oct 1968

Other Reports

Design of Tunnel Liners and Support Systems

Author
D. U. Deere, R. B. Peck, J. E. Monsees, B. Schmidt

Subject Tracks & Structures

Keywords: Soil Mechanics, Tunnel Lining, Tunnels

Abstract: Contents: Introduction; Fundamentals of tunnel support design; Existing theories, design methods, and practices; Tunnel support systems in soil and soft rocks; Tunnel support...

Office
RRD

1 Aug 1968

Technical Reports

Study of New Track Structure Design Phase II

Author
H.C. Meacham, J.e. Voorhees, J.G. Eggert, et al.

Subject Track, Tracks & Structures

Keywords: Track Structure Designs, Improved Track Stability, Track Response Computer Programs, Rail Fasteners

Abstract:

Phase I of this research investigation was undertaken in September, 1966, for the Office of High Speed Ground Transportation (OHSGT) of the Department of Commerce by Battelle...

Report Number
FRA-RT-72-15
Office
RDI-21