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Title:

UNION PACIFIC'S APPROACH TO PRESERVING LATERAL TRACK STABILITY

Accession Number:

00611108

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309050685

Abstract:

The discussion is focused entirely on the in-track behavior of continuous welded rail (CWR) as it affects the lateral stability of railroad track. Lateral track stability is conditioned by the interrelated actions of the various elements of the vehicle and track system (various rail conditions, railhead profile, crosstie conditions, fastener type, ballast conditions, wheel profile, train braking, track alignment, track surface, lateral and vertical wheel load (static plus dynamic), etc.). The critical element is rail in long, jointless lengths. The entire system must sustain longitudinal forces in the rail as temperature fluctuates. For years, track maintenance engineers have struggled to control CWR, that is, to lay CWR without building in future problems and to maintain CWR to avoid problems. Most engineers do not believe that this contest has been won; however, knowledge has increased in this area. The intent of this paper is to share Union Pacific's experience and provide help to others who are confronted with similar problems. Most instructions issued by Union Pacific to engineering forces, dispatchers, and train crews are included in this paper.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1289, Lateral Track Stability 1991: Proceedings of a Conference, May 15-17, 1990, St. Louis, Missouri. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Accession #:

01411122

Authors:

Thompson, W C

Pagination:

p. 64-70

Publication Date:

1991

Serial:

Transportation Research Record

Issue Number: 1289
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309050685

Features:

Figures (1) ; References (4) ; Tables (2)

Identifier Terms:

Union Pacific Railroad

Old TRIS Terms:

Subject Areas:

Design; Highways; Railroads; Security and Emergencies

Files:

TRIS, TRB

Created Date:

Jul 31 1991 12:00AM

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