Automatic evacuation guiding scheme based on implicit interactions between evacuees and their mobile nodes

  • Nobuhisa Komatsu
  • Masahiro Sasabe
  • Jun Kawahara
  • Shoji Kasahara
Article

Abstract

When large-scale disasters occur, evacuees have to evacuate to safe places quickly. They, however, may not be able to afford to obtain sufficient information for their evacuations under such emergent situations. In this paper, we propose an automatic evacuation guiding scheme using evacuees’ mobile nodes, e.g., smart phones. 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 through direct wireless communication with other mobile nodes and that with a server via remaining communication infrastructures. Through simulation experiments, we show that 1) the proposed scheme works well when the degree of damage is high and/or road segments are continuously blocked, 2) the average evacuation time can be improved even in small penetration ratio of the proposed system, and 3) the direct wireless communication can support many evacuations at almost the same level as the communication infrastructure when the number of evacuees becomes large.

Keywords

Automatic evacuation guiding Implicit interactions between evacuees and their mobile nodes 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Nobuhisa Komatsu
    • 1
  • Masahiro Sasabe
    • 1
  • Jun Kawahara
    • 1
  • Shoji Kasahara
    • 1
  1. 1.Graduate School of Information ScienceNara Institute of Science and TechnologyIkomaJapan

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