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The Track Loading Vehicle (TLV) was used to conduct a series of bridge tests. The Big Creek Through Truss Bridge on the Norfolk Southern Railroad in Tennessee was used for thee tests. The theoretical and experimental axial forces in bridge members were compared. The TLC generated influence lines,...
The California Air Resources Board (ARB) has determined that locomotives contribute significantly to the air quality problems across the state. In 1987, locomotives accounted for 155 tons per day of oxides of nitrogen emissions. This contribution accounts for approximately 5 percent of the state's...
There are two reasons to model Advanced Train Control System (ATCS) safety. The first is to provide a general sense of how well the ATCS performs, from the viewpoint of safety, with respect to the current signaling and control systems. The second is to examine the relative contribution to the...
Positive Train Control offers many safety and operational features that are designed to significantly enhance system reliability and network efficiency for heavy haul rail operations. PTC is intended to provide incremental improvements in train control through a modular design. A manual block...
Methods for detecting and quantifying the levels of conductive electromagnetic interference produced by solid state rapid transit propulsion equipment and the susceptibility of audio-frequency signaling systems to these emissions are presented. These methods include procedures for taking...
The purpose of this report is to provide an introduction to the technology known as the Advanced Train Control System (ATCS), illustrate its functions and potential benefits in freight railroad applications, and provide a guide to quantifying the benefits and costs for railroads interested in...
High Speed Guided Ground Transportation (HSGGT) vehicle/guideway systems-both high speed rail (HSR) and magnetically levitated (Maglev)- are being considered for deployment in the United States. The Federal Railroad Administration (FRA) has the mission of ensuring the safety of such systems. To...
The Federal Railroad Administration's Railroad Safety Statistics Annual Report is intended as a resource for the FRA's safety partners. It is also intended as a general reference source for individuals and organizations with an interest in rail safety issues. Statistical data, tables, and chars are...
The Federal Railroad Administration's Railroad Safety Statistics - Annual Report is intended as a resource for the FRA's safety partners and other entities who play a primary role in promoting railroad safety. It is also intended as a general reference source for individuals and organizations with...
The Federal Railroad Administration (FRA) has sponsored a program to continue the validation of new techniques for testing and analysis that could be applied to the evaluation of the safety and track worthiness aspects of new freight car and suspension designs. The total program involves laboratory...