Technical Reports

Fundamental Track Gage Widening Tests Using the Track Loading Vehicle

In early 1991, a series of fundamental track gage widening tests were conducted at the Transportation Test Center. Tests, using the Track Loading Vehicle (TLV), were performed to provide fundamental knowledge about the manner in which wheel drop derailments occur, to establish data about current...

Engineering Data on Selected North American Railroad Passenger Car Trucks

This report presents the results of an effort to compile truck and population data for the U.S. fleet of railroad passenger cars, and to describe the different passenger car truck designs and design features used in the United States. The report provides a detailed discussion of the functions of a...

Assessing the Potential for Improved Functioning of the Grain Merchandising/Transportation System

Since the end of the surplus grain car situation that characterized much of the 1980s, sudden surges in demand have strained the rail grain transportation system with greater frequency, creating recurring problems for shippers and carriers. Public debate has tended to narrowly identify the problem...

Tank Car Manufacturing/Repair/Retest Facility Evaluation Form

An evaluation form has been developed to aid Federal Railroad Administration (FRA) inspectors in recording data when examining tank car manufacturing and repair facilities, when inspecting newly constructed cars, or when examining cars which have been repaired or retested. Instructions and...

Safety of High Speed Magnetic Levitation Transportation System: U.S. Maglev System Concept Definition (SDCs) - System Safety Review

Magnetic levitation (maglev) technology has the potential to provide very high speed travel with the capacity and convenient access of conventional passenger railways, while relieving U.S. highway and airport congestion. A need exists for the assessment of the safety implications of this new form...

Safety of High Speed Ground Transportation Systems - X2000 U.S. Demonstration Vehicle Dynamics Tests, Final Test Report

This report docunents the procedures, events, and results of vehicle dynamic tests carried out on the ASEA-Brown Boveri (ABB) X2000 tilt body trainset in the U.S. between October 1992 and May 1993. These tests, sponsored by Amtrak and supported by the FRA, were conducted to assess the suitability...

Noise from High Speed Maglev Systems

Noise levels from magnetically-levitated trains (maglev) at very high speed may be high enough to cause environmental noise impact in residential areas. Aeroacoustic sources dominate the sound at high speeds and guideway vibrations generate noticeable sound at low speed. In addition, to high noise...

Maglev-Rail Intermodal Equipment and Suspension Study: Final Report

The physical and operational characteristics of four existing and planned maglev systems were surveyed pertinent to the intermoda! interface for each system. The maglev systems investigated were: Grumman "New York State" (Configuration 002) Maglev; Transrapid Intercity (Transrapid 07) Maglev; HSST...

Locomotive Control Compartment Safety Program: Locomotive Heavy Axle Load Tests

The Federal Railroad Administration sponsored a program to evaluate the wheel on rail dynamic safety performance of locomotives with increased cab weight at the Transportation Test Center, Pueblo, Colorado. The increased weight represents the weight of a cab reinforced to protect the occupants in...

Linear Synchronous Motors for Maglev

This paper is based in large part on work done in the DOT sponsored study, "Low Cost Linear Synchronous Motor Propulsion for Maglev." The principal objectives are to create a methodology for designing a Linear Synchronous Motor (LSM) with emphasis on new ideas not embodied in existing maglev...

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Technical Reports