Estimating Wildfire Evacuation Decision and Departure Timing Using
Large-Scale GPS Data
- URL: http://arxiv.org/abs/2109.07745v1
- Date: Thu, 16 Sep 2021 06:40:23 GMT
- Title: Estimating Wildfire Evacuation Decision and Departure Timing Using
Large-Scale GPS Data
- Authors: Xilei Zhao, Yiming Xu, Ruggiero Lovreglio, Erica Kuligowski, Daniel
Nilsson, Thomas Cova, Alex Wu, Xiang Yan
- Abstract summary: This study proposes a new methodology to analyze human behavior during wildfires by leveraging a large-scale GPS dataset.
We found that among all groups of evacuees, self-evacuees and shadow evacuees accounted for more than half of the evacuees during the Kincade Fire.
- Score: 5.576893352332638
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: With increased frequency and intensity due to climate change, wildfires have
become a growing global concern. This creates severe challenges for fire and
emergency services as well as communities in the wildland-urban interface
(WUI). To reduce wildfire risk and enhance the safety of WUI communities,
improving our understanding of wildfire evacuation is a pressing need. To this
end, this study proposes a new methodology to analyze human behavior during
wildfires by leveraging a large-scale GPS dataset. This methodology includes a
home-location inference algorithm and an evacuation-behavior inference
algorithm, to systematically identify different groups of wildfire evacuees
(i.e., self-evacuee, shadow evacuee, evacuee under warning, and ordered
evacuee). We applied the methodology to the 2019 Kincade Fire in Sonoma County,
CA. We found that among all groups of evacuees, self-evacuees and shadow
evacuees accounted for more than half of the evacuees during the Kincade Fire.
The results also show that inside of the evacuation warning/order zones, the
total evacuation compliance rate was around 46% among all the categorized
people. The findings of this study can be used by emergency managers and
planners to better target public outreach campaigns, training protocols, and
emergency communication strategies to prepare WUI households for future
wildfire events.
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