General

Feasibility Study on the Replacement or Upgrade of the T-6 Track Research Vehicle

This feasibility and cost study concluded that the FRA's aging T-6 can be replaced with a new state-of-the-art research platform costing approximately 3.5 million. The new, Track Research Instrumentation Platform (TRIP) is envisioned as a laboratory on wheels. This vehicle will provide: the means...

Ride Quality Evaluation of High Speed Trains on the Northeast Corridor

This document contains the results of testing to characterize the ride quality of high speed rail passenger vehicles. The lateral and vertical acceleration and vibration of standard Amtrak Metroliners, the Swedish X2000, and the German Intercity Express (ICE), were recorded during simulated and...

Safety of High Speed Guided Ground Transportation Systems: Potential Health Effects of Low Frequency Electromagnetic Fields Due to Maglev and Other Electric Rail Systems

The safety of magnetically-levitated (maglev) and high-speed rail (HSR) trains proposed for use in the United States is the responsibility of the Federal Railroad Administration. There are concerns for physical safety associated with equipment operation and high-voltage currents, and for potential...

Fire Safety of Passenger Trains: A Review of U.S. and Foreign Approaches

While the historical record has been very good and few serious passsenger train fires have occurred, minor incidents could develop into potentially life-threatening events. Fire safety is an area of particular interest for both conventional intercity and commuter trains, as well as new high-speed...

A Risk Assessment Study on the Transportation of Hazardous Materials over the U.S. Railroads

A comprehensive and generic risk assessment model has been developed for evaluating the risk to the public from the transportation of hazardous materials (Hazmat) on rail over specified routes. The model considers the various operational and hazmat property parameters. These include the make-up of...

Safety of High Speed Magnetic Levitation Transportation Systems: High-Speed Maglev Trains: German Safety Requirements RW-MSB (Translation of German Ragelwerk Magnetschnellbahnen-Sicherheitstechnische Anforderungen )

This document is a translation of technology-specific safety requirements developed for the German Transrapid Maglev Technology. These requirements were developed by a working group composed of representatives of German Federal Railways (DB), Testing and Planning Company for Maglev Systems (MVP),...

Investigation of Rail Fastener Performance Requirements

An investigation was conducted to develop qualification requirements which reliably indicate the service performance of rail fasteners. The study included a review of available data from qualification tests, measurements of rail/tie deflections and fastener clip strains at the Facility for...

An Investigation of Techniques for Validation of Railcar Dynamic Analyses

A linear model of the vertical dynamics of a railcar was validated by the application of spectral techniques to experimental data. Track input spectra were computed from test track surface measurements gathered in the TDOP test program. Acceleration measurements of a freight car were used to...

Tread Metal Buildup on Railroad Freight Car Wheels- Dynamometer Simulation

Recent dynamometer tests on a composition metal brake shoe with a high metal powder content developed slight tread metal pick up during testing at the Federal Railroad Administration's Transportation Technology Center. Additionally, the brake shoes and wheels that developed tread metal buildup...

Safety of Railroad Passenger Vehicle Dynamics: OMNISIM Simulation and Test Correlations of Passenger Rail Cars

The purpose of the work is to validate the safety assessment methodology previously developed for passenger rail vehicle dynamics, which requires the application of simulation tools as well as testing of vehicles under different track scenarios. This report specifically addresses the evaluation of...

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General