Development of the model of natural emergencies in decision support system
DOI:
https://doi.org/10.15587/1729-4061.2015.37801Keywords:
emergencies, territorial system, emergency contour spread, approximate contour borders, emergency source, geotaxon, cellAbstract
In a modern anti-emergency DSS the required performance can be achieved using a plausible formal emergency model with the approximate nature of the undermined contour borders, which will significantly reduce the requirements for propagation model accuracy without substantial simplify it and without loss of clarity and justification for the decision-maker.
The formal emergency model is based on a territorial system resulting from the space (area) decomposition for a finite set of non-overlapping homogeneous regions (geotaxons) and subsequent sampling grid cells of equal size, which allows us to consider the dynamics of emergency spread discretely at the level of individual cells.
The emergency model includes the territorial system and the set of independent point sources, defined at the cells level of the territorial system, each of which forms a breeding ground for emergencies. The dynamics of emergency spread is simulated as the undermined contour borders motion in time represented with the approximate boundary region set using the rough set methodology.
Experimentally proved that the proposed emergency model provides acceptable performance in terms of DSS accuracy and compute speed at the sampling terrain cells with sizes ranging from 8 to 14 m.
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