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FAST/HAL Tie and Fastener Experiments

The objective of the Fast Accelerated Service Testing Heavy Axle Load Tie and Fastener Experiments was to quantify the performance of wood and concrete ties and associated fastening systems under the FAST Heavy Axle Load (HAL) train. The experiment was conducted on the 5- and 6-degree curves of the...

FAST/HAL Rail Performance Experiment and Overview

The Rail Performance Experiment, conducted at the Facility for Accelerated Service Testing, Transportation Test Center, Pueblo, Colorado, was performed to evaluate the effect of increasing axle loads, from 33- to 39-tons, on the fatigue and wear performance of rails, ground rails, and welds. Four...

FAST/HAL Mechanical Component Performance Test

The Association of American Railroads and the Federal Railroad Administration conducted a research program to investigate the implications of operating Heavy Axle Load (HAL) freight cars using a controlled consist of locomotives and fully loaded HAL freight cars equipped with conventional three-...

FAST/HAL Ballast and Subgrade Experiments

The ballast and subgrade experiments were conducted during the first 160 MGT of Heavy Axle Load (HAL) traffic to determine if the increase in axle load, 33-ton to 39-ton, generated a measurable difference in the performance of the four selected ballasts and the typical subgrade found at the...

Undesired Emergency Brake Applications - Transportation Test Center UDE Tests

This report covers the Federal Railroad Administration funded Undesired Emergency Tests performed at the Transportation Test Center in Pueblo, Colorado. This report also covers the AAR research conducted prior to the Transportation Test Center tests. This is necessary in order to provide a...

Test of Alerter/Emergency Braking System

The purpose of this alerting device test program was to obtain a base of data that can subsequently be used to determine the effectiveness of the tested equipment. The approach for accomplishing this was to use the Research and Locomotive Evaluator/Simulator (RALES) full-scale locomotive simulator...

Safety Relevant Observations on the X200 Train as Developed for the Swedish National Railways

The safety of high speed rail technology proposed for possible application.in the United States is of concern to the Federal Railroad Administration. This report, one in a series of reports planned for high speed rail technologies presents an initial review of one such technology, t-he Swedish...

Review and Analysis of Railroad Passenger Car Waste Retention Systems Volume II: Appendices C, D and E

The traditional practice of dumping railroad toilet and other waste directly onto the tracks is still used on most passenger cars operated by Amtrak. However, this practice is being questioned and legislation to require full waste retention systems is under consideration. This report has been...

National Train Dispatcher Safety Assessment 1987-1988

[From the Introduction] In 1971, FRA commissioned the Transportation Systems Center (TSC) to analyze the responsibilities of the railroad train dispatcher. The report of this study, which was entitled "An Analysis of the Job of Railroad Train Dispatcher" was published in 1974. Today, 19 years after...

Heavy Axle Load Track Gage Widening Tests by Using the Track Loading Vehicle

The TLV was used to conducted a series of static and dynamic gage widening tests. The tests were conducted over the High-Tonnage Loop at the AAR's Facility for Accelerated Service Testing (FAST) in Pueblo, Colorado. The gage widening under the 39-ton axle load was compared with that under the 33-...

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