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Passenger Acceptance of Alignments with Frequent Curves in Maglev or Other Very-High-Speed Ground Systems

The Calculation of the Thermodynamic Properties of Propane, Propylene, N-Butane, and Ethylene

The thermodynamic properties of propane, propylene, n-butane and ethylene were calculated and are presented in tables. The tables list the values of the specific volume, the enthalpy, then entropy, the specific heat at constant pressure, the specific heat at constant volume and the sonic velocity...

Theoretical Manual and User's Guide: Longitudinal-vertical Train Action Model

A mathematical model for simulating the longitudinal-vertical motion of railroad cars in impact situations is described in this document. Development and validation of the model was part of a study concerned with the phenomenon of coupler bypass resulting from impact or squeeze. The model...

The Effects of a Fire Environment on a Rail Tank Car Filled with LPG

A 127 kiloliter (33,600 gallon) railroad tank car was instrumented and filled with liquefied petroleum gas. A large JP-4 fuel pool fire then engulfed the tank car, and measurements of temperature, pressure, etc. were recorded as a function of time. After 24.5 minutes, the car failed...

Mechanical Properties of AAR M128-69-B Steel Plate Samples Taken From Insulated Fire-tested Tank Car RAX 202

Studies were undertaken to measure the elevated-temperature mechanical properties and to determine the elevated-temperature fracture behavior of selected AAR M128-B steel plates. In addition, the ambient-temperature mechanical properties were measured to determine if the requirements of...

A Metallurgical Investigation of a Full-Scale Insulated Rail Tank Car Filled with LPG Subjected to a Fire Environment

An analysis of the failure of an insulated rail tank car, RAX 202, which had been tested to failure in a fire environment at White Sands Missile Range, New Mexico, was requested by the Federal Railroad Administration, Department of Transportation. The tank car, filled with approximately 33,000...

A Metallurgical Analysis of Five Steel Plates Taken from a Tank Car Accident Near Crescent City, Illinois

A metallurgical analysis of five steel samples (numbered FRA-1 through FRA-5) was requested by the Bureau of Railroad Safety, Federal Railroad Administration, Department of Transportation. These steel samples were taken from two tank cars (numbered SOEX 3037 and SOEX 3219) which had been...

Dynamic Mechanical Properties of Two AAR M128 and One ASTM A212-B Steel Tank Car Head Plates

Rerouting and Speed Reduction of Hazardous Material Trains in Selected Conrail Corridors

Rerouting and speed reduction of trains carrying hazardous materials shipments are analyzed so as to determine effects on railroad operations and costs and population exposure. A case study format was utilized on two corridors within the Conrail system. Segments of mainline which are in proximity...

Energy Intensity of Intercity Passenger Rail

This research report deals with the Energy Intensity of Intercity Rail Passenger Systems. Included in the energy evaluation are the impacts of operating conditions (speed, load factor) and train consists. The report also documents an extensive list of data used for evaluation purposes. Impact of...

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