Scientific Reports of the National University of Life and Environmental Sciences of Ukraine

Modeling of spatial and temporal assessment of territorial risk in case of accidents during transportation of chemically dangerous goods by rail

L. Muntian, V. Cherno, H. Niepieina
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Abstract

This scientific article is devoted to the problem of modeling the assessment of territorial risk in accidents during transportation of chemically hazardous goods by rail. Modeling was carried out by the method of spatial-temporal assessment of territorial risk in the event of the emission of harmful or chemically hazardous substances during the operation of the rolling stock of railway transport. This method takes into account a number of indicators: the movement of the emission source, the trajectory of the train, the speed and direction of the wind, the mode of emission of the pollutant from the moving emission source. It should be noted that the models developed during the study have a wide operating range. The article also discusses the issues of risk assessment in case of emission of harmful or chemically hazardous substances during the operation of mobile railway transport. So, the method of spatial-temporal assessment of territorial risk in the case of the emission of chemically hazardous substances during the operation of railway transport, presented in the article, is based on the numerical integration of three- or two-dimensional equations of mass transfer of hazardous substances in the atmosphere and the use of information on the probability of realization of certain meteorological conditions. It allows you to assess the territorial risk taking into account the speed of the train, the route of transportation, the intensity of emissions, chemical transformations of impurities in the atmosphere; to obtain information on the dynamics of changes over time of the territorial risk at any point in the computational area

Keywords

air pollution, meteorological conditions, space-time assessment, territorial risk, emergency emissions

Suggested citation
Muntian, L., Cherno, V., & Niepieina, H. (2021). Modeling of spatial and temporal assessment of territorial risk in case of accidents during transportation of chemically dangerous goods by rail. Scientific Reports of the National University of Life and Environmental Sciences of Ukraine, 17(2),35-48. https://doi.org/10.31548/dopovidi2021.02.004
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