INNOVATIONS IN TRACK STRUCTURES ON LONG ISLAND RAIL ROAD-RATIONALE, DESIGN CRITERIA, AND PERFORMANCE
During the last 20 to 25 years, the Long Island Rail Road (LIRR) has designed or participated in the design and construction of various grade elimination projects. The earlier projects (1958-1970) entailed embankment sections with conventional track structure--wood tires, jointed rail, and ballast. The viaduct sections were cast-in-place, reinforced concrete deck with ballast, wood ties, and jointed rail. Since 1970 LIRR has embarked on various innovative track structures and their associated components, which entailed continuous welded rail, elastic fastener clips, direct fixation fastening system, and concrete slab track. Some of the considerations in selection of the new design features were availability of technology, improved ride quality, faster operating speeds, and reduced maintenance costs. Various improved track structures are discussed in this paper and the rationale, design criterion, field measurements, findings, and performance are described.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- Publication of this paper sponsored by Committee on Track Structure System Design.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
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Authors:
- Longi, Mohammad S
- Publication Date: 1983
Media Info
- Media Type: Print
- Features: Figures; Photos; References; Tables;
- Pagination: pp 18-26
- Monograph Title: Track design and railroad electrification
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Serial:
- Transportation Research Record
- Issue Number: 939
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Concrete bridges; Concrete slab track; Continuous welded rail; Design; Electric power; Electrical systems; Instrumentation; Propulsion; Rail fasteners; Railroad tracks; Test tracks
- Identifier Terms: Long Island Rail Road
- Uncontrolled Terms: Design criteria
- Old TRIS Terms: Direct fixation; Track structures
- Subject Areas: Bridges and other structures; Design; Highways; Public Transportation; Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 00391594
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jan 30 1985 12:00AM