Enhancing Urban Resilience to California Wildfires: A Systemic Risk Mechanism Design and Theory Framework for a Comprehensive Risk Assessment

The paper discusses the growing severity of wildfires in California, fueled by climate change and worsened by insufficient urban wildfire management. These wildfires lead to environmental damage, financial losses, psychological trauma, and fatalities. The intensifying wildfire seasons, driven by hotter and drier conditions, pose threats to ecosystems, human lives, property, and local economies. Traditional wildfire management has primarily focused on ecological and physical factors like fuel availability and fire behavior, often overlooking social dimensions that influence community resilience. This neglect disproportionately affects marginalized groups, who may lack the resources to effectively cope with wildfires. To address these challenges, the paper calls for comprehensive risk management frameworks, including early-warning systems, defensible spaces, controlled burns, and robust recovery plans, to enhance urban resilience and ensure sustainable disaster recovery. The paper also introduces Risk Mechanism Design (RMD) and the Risk Mechanism Theory Index (RMTI) as a unified methodology to address risk factors impacting societal balance. RMD emphasizes the role of socio-economic and environmental conditions in determining individual and population exposure to risks, advocating for the characterization and quantification of risks for vulnerable subgroups. RMTI enables cities and communities to rank risks based on their probability of occurrence relative to population density, measuring exposure, assessing impact intensity, and evaluating resilience levels. It considers the extent of injury and damage that may result from a hazard event of a given intensity in each area’s adaptability, susceptibility, and capacity to withstand detrimental impacts. By proactively addressing social, economic, and environmental vulnerabilities, RMTI aims to create mechanisms that mitigate risks and promote societal stability and well-being. This approach combines quantitative analysis with actionable strategies to enhance resilience and reduce the adverse effects of wildfires and other risks.