Community Dimensions of Wildfire Resilience
Problem
The most catastrophic wildfires move from wildlands into suburban communities. In communities with fuels connecting houses to each other and to the surrounding wildland, even parcel-level mitigation actions – while essential – are only part of the solution to reduce overall wildfire risk.
- Conflagration risk is particularly stark for communities in which fuels, whether structural or dense vegetation, are close to homes.
Understanding and then mitigating the complex set of variables related to community resilience to wildfire is difficult because of the multiplicity of variables that contribute to – or reduce – it. These variables include topography, wind, vegetation management, neighborhood density, nature-based solutions (like fire breaks and buffers), the percentage of homes in a neighborhood that have undertaken meaningful property-level mitigation actions, infrastructure robustness (water, power, and evacuation routes), and community-wide engagement. Data related to these variables are neither consolidated nor consistent.
Path Forward
Addressing wildfire resilience at a community or neighborhood scale – whether comprised of single-family homes, multifamily buildings (e.g., townhomes, garden apartment complexes, and low-rise apartment buildings), or a combination of the two – requires developing a framework to analyze the interconnectivity of these variables, identifying data sources for these variables, and encouraging whole neighborhoods to undertake the necessary mitigation actions. It requires community action and ongoing diligence by individual homeowners.
IBHS is developing a neighborhood-scale designation for at-risk communities. This endeavor requires additional research centered around the influence of connective fuels between structures and how much fuel management is needed, as well as a neighborhood-scale risk analysis tool, rooted in an open-source data framework, that can meet the needs for such a designation program. Alongside this research, a vast scale of data must be consolidated into an open-source platform that is publicly available and usable.
IBHS will…
Develop wildfire designation programs at the neighborhood scale for single family homes, townhouses, and multifamily structures.
Develop the data standards and minimum requirements to evaluate and monitor a community’s wildfire hazards and lead the development of a consortium to pursue an open-source data repository of this information.