Simulation study of relief goods delivery and information sharing by epidemic transmission in disaster areas

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Abstract

<p>During large-scale disasters, some regions can become isolated from critical information exchanges due to problems with communication infrastructures. In this paper, we consider information exchange among isolated shelters in such cases using epidemic transmission, which distributes information without infrastructure by direct communication between nodes and their movements. As mobile nodes for epidemic transmission, we consider transport vehicles that are leaving a distribution center to deliver relief goods to shelters. These transport vehicles receive information from the shelters and distribute it to other shelters together with the relief goods. As a result, information is shared by the shelter. Suppose that transport vehicles move along different traveling paths and exchange information at the distribution center. Transport vehicles can also get new information from other transport vehicles while they wait for new relief goods to arrive at the distribution center. Transport vehicles might be able to receive more new information by waiting for a longer time, although such additional waiting time causes a greater delay of the delivery of relief goods. In this paper, we consider the relation between relief goods delivery and information sharing by transport vehicles with epidemic transmission and analyze how the additional waiting time affects the delay of relief goods and the time needed for information sharing by computer simulation.</p>

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