BOWTIE ANALYSIS AS A TOOL FOR VISUALIZATION OF THE RISK SCENARIO

The article aims to apply the bowtie analysis to the visualization of a development of a specific scenario of the combined risk. Its authors build on their previous work, where they started with the typology, interactions and the definition of the combined risk and determined the probability of formation of the combined risk. The aim of the present article is the visualization of the scenario where a natural event triggers the release of dangerous chemicals by the application of the bowtie analysis. It was achieved by using two well-known methods of the risk analysis – the fault tree analysis and event tree analysis. Through the methods used, the authors obtained the basic model trees for the causes and consequences. The next step, as an addition to the used method, was to establish particular barriers that could be used to decrease the probability of a top event or to decrease the consequences. This information is the best basis for further analyses of the phenomenon of the combined risk (when a natural disaster triggers the release of dangerous goods).