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Showing 1 to 8 of 8 for “"Tank Car"”.
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Optimizing Railroad Tank Car Safety Design to Reduce Hazardous Materials Transportation Risk
I develop a modeling approach in which tank car safety design optimization is considered as a two-phase process. The first phase addresses the tradeoff between safety and transportation efficiency by using Pareto optimization to identify the most efficient design combinations to improve safety …
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Quantitative analyses of unit train safety and railroad tank car implementation policy
… policies for implementation schedule for safer tank cars. The effect of loading condition on unit-train derailment occurrence, causes and severity is described in Chapter 2. An algorithm was developed to identify derailments of loaded and empty unit trains on mainlines and sidings recorded in …
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Cost -Effectiveness of Reducing Environmental Risk From Railroad Tank Car Transportation of Hazardous Materials
DOT 111A100W1 specification tank cars are the most commonly used cars for the commodities considered. A variety of alternative tank cars with more protective features such as, half- or full-height head shields, jacket and insulation and top fittings protection were considered. Although the …
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Redesigning experimental equipment for determining peak pressure in a simulated tank car transfer line
When liquids are transported from storage tanks to tank cars, improper order of valve openings can cause pressure surges in the transfer line. To model this phenomenon and predict the peak pressures in such a transfer line, a laboratory setup consisting of a pressurized water storage tank connected …
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Modeling the impact of petroleum mixtures released from railroad tank car accidents on groundwater contamination and cleanup times
… phase liquids released due to railroad tank car accidents. The properties include density, viscosity, surface and interfacial tension. Several models are used to predict pure compounds properties, similar mixture properties, and dissimilar mixture properties. Models for estimating …
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Optimal strategies to improve railroad train safety and reduce hazardous materials transportation risk
… The analysis shows the variation of train and car derailment rates under different infrastructure and traffic characteristics. Understanding derailment severity is also important. A quantile regression model is developed to analyze derailment severity distribution at various quantiles. After a …
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Development of an accident database for quantitative safety and risk analysis of highway bulk-package transportation of hazardous materials
… potential database users, and reviewing cargo tank classifications and specifications, industry practices, existing data collection methodologies, risk analysis strategies, container performance studies, and cargo tank accident investigations. This study identifies data fields in the …
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Estimating the conditional derailment probability of release (CDPR) of tank cars in freight train derailments
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01