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This report has been prepared as part of the Improved Track Structures Research Program sponsored by the Office of Rail Safety Research of the Federal Railroad Administration. The major modes of track degradation have been reviewed to identify the significant wheel/rail loading mechanisms....
Several new capabilities have been added to the DYNALIST II computer program. These include: (1) a component matrix generator that operates as a 3-D finite element modeling program where elements consist of rigid bodies, flexural bodies, wheelsets, suspension elements, and point masses assembled on...
Several new capabilities have been added to the DYNALIST II computer program. These include: (1) a component matrix generator that operates as a 3-D finite element modeling program where elements consist of rigid bodies, flexural bodies, wheelsets, suspension elements and point masses assembled on...
This report documents the synchronous machine, referred to as a synchronous condenser, which, in the tracked levitated research vehicle (TLRV), provides line commutation for the inverter and power factor correction for the linear induction motor. The machine also incorporates features permitting...
Literature and other information sources pertaining to properties of granular materials, ballast and sub-ballast materials, fine-grained soils, and structural behavior models were reviewed; presented In this report Is a summary of the current technology relative to the following: (1.) Procedures...
This three-volume report presents the technical methodology, data samples, and results of tests conducted on the SOAC on six transit-authority properties, namely the New York City Transit Authority (NYCTA), Massachusetts Bay Area Transportation Authority (MBTA), Cleveland Transit System (CTS),...
This publication contains 1,106 abstracts of journal articles and research reports selected by RRIS from current railroad literature, 93 descriptions of computer programs, and 404 summaries of ongoing research activities in the railroad field. This material covers the entire range of railroading...
This publication contains 1,176 abstracts of journal articles and research reports selected by RRIS from current railroad literature and 235 summaries of ongoing research activities in the railroad field. This material covers the entire range of railroading from technology to operations,...
Proceedings of Roadbed Stabilization Lime Injection Conference includes twelve technical papers that were presented at the conference on August 21 and 22, 1975 in Little Rock, Arkansas. The papers document the state of knowledge and related subjects on lime pressure injection stabilization of...
Track and structure characteristics and problem areas to be encountered in upgrading the Corridor are discussed. Standards considerations and applicability are outlined along with the maintenance history of the Corridor. Track system options for application to 150 MPH High Speed Rail (HSR) service...