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WUIVAC: a wildland-urban interface evacuation trigger model applied in strategic wildfire scenarios

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  • Philip E. Dennison
  • Thomas J. Cova
  • Max A. Mortiz

Abstract

An evacuation trigger is a point on the landscape that, once crossed by a wildfire, triggers an evacuation for a community. The Wildland-Urban Interface Evacuation (WUIVAC) model can be used to create evacuation trigger buffers around a community using fuels, weather, and topographic inputs. A strategic, community-scale application of WUIVAC for the town of Julian, California was investigated. Eight years of wind measurements were used to determine the worst-case (strongest) winds in 16 directions. Surface fire rate of spread was used to calculate evacuation trigger buffers for the communities of Julian and nearby Whispering Pines, and for three potential evacuation routes. Multiple trigger buffers were combined to create fire planning areas, and trigger buffers that predict the closure of all evacuation routes were explored. WUIVAC trigger buffers offer several potential benefits for strategic evacuation planning, including determination of when to evacuate and locating potential evacuation routes. Copyright Springer Science+Business Media B.V. 2007

Suggested Citation

  • Philip E. Dennison & Thomas J. Cova & Max A. Mortiz, 2007. "WUIVAC: a wildland-urban interface evacuation trigger model applied in strategic wildfire scenarios," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 41(1), pages 181-199, April.
    • Handle: RePEc:spr:nathaz:v:41:y:2007:i:1:p:181-199
    DOI: 10.1007/s11069-006-9032-y
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    Citations

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    Cited by:

    1. Thomas J. Cova & Philip E. Dennison & Dapeng Li & Frank A. Drews & Laura K. Siebeneck & Michael K. Lindell, 2017. "Warning Triggers in Environmental Hazards: Who Should Be Warned to Do What and When?," Risk Analysis, John Wiley & Sons, vol. 37(4), pages 601-611, April.
    2. Stephen D. Wong & Jacquelyn C. Broader & Joan L. Walker & Susan A. Shaheen, 2023. "Understanding California wildfire evacuee behavior and joint choice making," Transportation, Springer, vol. 50(4), pages 1165-1211, August.
    3. Alex W. Dye & John B. Kim & Andrew McEvoy & Fang Fang & Karin L. Riley, 2021. "Evaluating rural Pacific Northwest towns for wildfire evacuation vulnerability," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 107(1), pages 911-935, May.
    4. E. Ronchi & J. Wahlqvist & A. Ardinge & A. Rohaert & S. M. V. Gwynne & G. Rein & H. Mitchell & N. Kalogeropoulos & M. Kinateder & N. Bénichou & E. Kuligowski & A. Kimball, 2023. "The verification of wildland–urban interface fire evacuation models," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 117(2), pages 1493-1519, June.
    5. Wong, Stephen D. & Broader, Jacquelyn C. & Shaheen, Susan A. PhD, 2020. "Review of California Wildfire Evacuations from 2017 to 2019," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt5w85z07g, Institute of Transportation Studies, UC Berkeley.
    6. Joe Scott & Don Helmbrecht & Matthew Thompson & David Calkin & Kate Marcille, 2012. "Probabilistic assessment of wildfire hazard and municipal watershed exposure," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 64(1), pages 707-728, October.
    7. Wong, Stephen D PhD & Broader, Jacquelyn C & Walker, Joan L PhD & Shaheen, Susan A PhD, 2022. "Understanding California wildfire evacuee behavior and joint choice making," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt4fm7d34j, Institute of Transportation Studies, UC Berkeley.
    8. Thomas J. Cova & Philip E. Dennison & Frank A. Drews, 2011. "Modeling Evacuate versus Shelter-in-Place Decisions in Wildfires," Sustainability, MDPI, vol. 3(10), pages 1-26, September.

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