Special Issue Engineering in General

Challenges of Tourists Evacuation in Tsunami Considering with Population Distribution

Tourist attractions on islands are concentrated in coastal areas, and tourists are at high risk of being struck by a tsunami. It is acknowledged that tourists, due to their unfamiliarity with the area, may benefit from the evacuation guidance provided by residents. However, it is important to note that numerous issues persist within the current disaster risk reduction measures. In this study, the number of disaster victims was clarified based on the distribution of people by time of day in Ishigaki city and Miyakojima city, Okinawa Prefecture. From the perspective of evacuation support, the overlap between residents and tourists was analyzed using a “niche overlap index” to identify areas where evacuation guidance by residents is difficult and areas and time periods where support can be expected.

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