Research on demand prediction and distribution of emergency materials under large flood disasters

Flooding is a typical sudden and widespread disaster, which requires a large amount of emergency materials and rapid transportation capacity to control the spread of the disaster. In order to make the distribution of emergency materials under flooding more scientific and reasonable, and to improve the rescue efficiency, this paper studies the prediction and distribution method of emergency materials under large flood disasters, extracts seven relevant factors affecting the disaster relocation population, and establishes the relationship model between the number of disaster relocation population and the number of emergency materials. Meanwhile, with the goal of minimizing the transportation time turnover of the distribution centers and maximizing the demand satisfaction rate of the disaster sites, we construct a large-scale flood emergency materials distribution model with multiple distribution centers, multiple disaster sites and multiple materials. And the model can be verified to achieve the minimum demand satisfaction rate of emergency materials at each disaster site.