Journal of Social Safety Science
Online ISSN : 2187-9842
Print ISSN : 1345-2088
ISSN-L : 1345-2088
Optimization of Safe Evacuation Route considering Uncertainty of Firespread Estimation under Post-Earthquake Fires
-Idea for Real-time Evacuation Guidance based on Incomplete Information-
Yuta SUZUKIEiichi ITOIGAWA
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JOURNAL FREE ACCESS

2018 Volume 33 Pages 175-185

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Abstract

Under the post-earthquake fires, one of the effective strategies for securing inhabitants’ safe is guiding them to an evacuation space in real-time with the forecast of firespread based on fire information gathered by the public sector. However, the firespread estimation includes the errors between the forecasted fire speed and the actual one. In this study, we suggested the optimization method of a safe route considering the uncertainty of the fire spread estimation. First, we modeled the safety index called "safe margin of evacuation". This index intends the maximum tolerance on the deviation between the forecasted fire speed and the actual one. Second, we develop the method how to maximin the index on the route. Finally, we discussed the characteristics of the optimal route with the computer simulation.

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© 2018 Institute of Social Safety Science
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