Automatic Evacuation Guiding Scheme Based on Implicit Interactions Between Evacuees and Their Mobile Nodes

Nobuhisa Komatsu

Master's Thesis, 2016

Abstract

When large-scale disasters occur, evacuees have to evacuate to safe places quickly. In this thesis, we propose an automatic evacuation guiding scheme using evacuees' mobile nodes. The key idea to achieve automatic evacuation guiding is implicit interactions between evacuees and their mobile nodes. Each mobile node tries to navigate its evacuee by presenting an evacuation route. At the same time, it can also trace the actual evacuation route of the evacuee as the trajectory by measuring his/her positions periodically. The proposed scheme automatically estimates blocked road segments from the difference between the presented evacuation route and the actual evacuation route, and then recalculates the alternative evacuation route. In addition, evacuees also share such information among them by using an on-demand information sharing scheme over direct wireless communication with other mobile nodes and that with a server via remaining communication infrastructures. Through simulation experiments, we show 1) the effectiveness of the proposed scheme becomes high in case of high degree of damage and/or continuously blocked road segments, 2) the average evacuation time can be improved even in small penetration ratio of the proposed system, 3) the on-demand information sharing scheme can reduce the network load compared to conventional DTN routing, and 4) the increase of coverage has larger impact on the effect of information sharing than that of the transmission range of direct wireless communication.

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    Text Reference

    Nobuhisa Komatsu, Automatic Evacuation Guiding Scheme Based on Implicit Interactions Between Evacuees and Their Mobile Nodes, Master's Thesis, March 2016.

    BibTex Reference

    @mastersthesis{komatsu16mthesis,
    author = "Komatsu, Nobuhisa",
    title = "Automatic {{Evacuation Guiding Scheme Based}} on {{Implicit Interactions Between Evacuees}} and {{Their Mobile Nodes}}",
    year = "2016",
    month = "March",
    school = "Nara Institute of Science and Technology"
}