Testing Wildfire Evacuation Strategies and Coordination Plans for Wildland-Urban Interface (WUI) Communities in California

Soga, Kenichi; Comfort, Louise; Li, Pengshun; Zhao, Bingyu; Lorusso, Paola; University of California, Berkeley. Institute of Transportation Studies

doi:10.7922/G2XK8CX7

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Testing Wildfire Evacuation Strategies and Coordination Plans for Wildland-Urban Interface (WUI) Communities in California

2024-04-01
By Soga, Kenichi ; Comfort, Louise ; Li, Pengshun ; ...

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Creators:

Soga, Kenichi ; Comfort, Louise ; Li, Pengshun ; Zhao, Bingyu ; Lorusso, Paola

Soga, Kenichi ; Comfort, Louise ; Li, Pengshun ; Zhao, Bingyu ; Lorusso, Paola Less -
Corporate Creators:

University of California, Berkeley. Institute of Transportation Studies
Corporate Contributors:

University of California Institute of Transportation Studies ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology

University of California Institute of Transportation Studies ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology Less -
Subject/TRT Terms:

[+]

Advanced Traveler Information Systems Emergency Management Evacuation Greenways Parking Traffic Simulation Urban Areas Wildfires
Publication/ Report Number:

UC-ITS-2022-34
DOI:

http://dx.doi.org/10.7922/G2XK8CX7
Resource Type:

Tech Report
Geographical Coverage:

California ; United States

California ; United States Less -
Edition:

Final Report (July 2022 – May 2023)
Corporate Publisher:

University of California Institute of Transportation Studies
Abstract:

In the event of a wildfire, government agencies need to make quick, well-informed decisions to safely evacuate people. Small communities, such as in Marin County, with a mix of residences and flammable vegetation in Wildland-Urban Interface zones tend to lack resources to conduct evacuation studies. Consequently, this study uses a framework of wildfire and traffic simulations to test the performance of potential evacuation strategies, including reducing the volume of evacuating vehicles through car-pooling, phasing evacuations by staggering evacuation times by zone, and prohibiting street parking in four representative areas of Marin County. Results show that reducing vehicle numbers lowers the average travel time by 20%-70% and average exposure time to wildfire by 27%-60% from the baseline. Phased evacuations with suitable time intervals lower the average travel time by 13.5%-70%, but may expose more vehicles to fire in some situations. Prohibiting street parking yields varying results due to different numbers of exits and evacuees. In some cases, prohibiting street parking reduces the average travel time by over 50%, while in other cases it only reduces the average travel time by 9%, contributing little to evacuation efficiency. Altogether, Marin County may want to consider developing a communication and parking plan to reduce the number of evacuating vehicles in wildfire situations. Phased evacuation is also highly recommended, but the suitable phasing interval depends on the speed of fire spread and number of evacuees. Further, whether to establish street parking prohibition policies for a certain area depends on the number of exits and the number of vehicles on the streets.
Format:

PDF
Funding:

UC-ITS-2022-34
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha256:b54e7e2d312703f5a0b6ba162c1d08d3addaa1a0eb83f794f78ef2521b03ce18
Download URL:

https://rosap.ntl.bts.gov/view/dot/74276/dot_74276_DS1.pdf
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Testing Wildfire Evacuation Strategies and Coordination Plans for Wildland-Urban Interface (WUI) Communities in California

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