Technical Reports
Embankment Support for a Railroad Test Track: Design Studies
The events and considerations leading up to the production of an embankment design for the support of the Kansas test track are described. Included are discussion of: site description, field investigations, laboratory investigations, sub-surface conditions, embankment design, and instrumentation...Tracked Air Cushion Vehicle Systems
The tracked air cushion vehicle is one of several advanced ground transportation systems being studied by TRW Systems Group for the Department of Transportation as a possible means of providing safe, high-speed, high-capacity transportation along densely populated areas such as the Northeast...Heat-Assisted Tunnel Boring Machines
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, b) the increase in hourly cost incurred by the heating system, and c) the net effect of the increased performance and...Optimization of a Simple Dynamic Model of a Railroad Car under Random and Sinusoidal Inputs
This investigation was concerned with techniques for determining values of damping and spring constants that would minimize the vibrations transmitted from irregular railroad track to passenger positions. Results developed for a three- degree-of-freedom model using a simplified representation of...Northeast Corridor Transportation Facts and Statistics
The material presented in the document is meant to provide basic information on the intercity transportation system and other select regional characteristics of the Northeast Corridor. Primary attention is given to the status of the existing transportation system and the magnitude and...Positive Train Control Desense Mitigation Test: Research Phase 1
Final report for Positive Train Control (PTC) Desense Mitigation Test Research project includes description of Northeast Corridor (NEC) PTC deployments, PTC radio desense scenarios, PTC radio desense mitigation approaches, PTC radio desense mitigation trade study, and recommendations. The trade...Next-Generation Foundations for Special Trackwork – Phase III
See Also:
Next-Generation Foundations for Special Trackwork – Phase I Next-Generation Foundations for Special Trackwork – Phase II