San Joaquin County in Stockton, California, has adopted an innovative approach to enhance emergency preparedness and sustainability in transportation infrastructure. Facing challenges like wildfires and power outages, the county has developed the Regional Transportation Plan/Sustainable Communities Strategy and Regional Resiliency Implementation Plan to strengthen emergency evacuation routes and ensure power backup at critical intersections. By deploying HyMax hydrogen fuel cell backup systems, the county has achieved longer runtime, environmental friendliness, and real-world reliability during outages. These systems not only improve public safety and reduce accident risks but also align with sustainability goals, meeting the highest safety standards. The proactive strategy also ensures the functionality of evacuation routes during disasters, enabling first responders to navigate freely and reducing the county's carbon footprint. San Joaquin County's approach serves as a model for other municipalities, offering reduced accident risks, lower operational costs, and greater resilience in the face of extreme weather. By prioritizing sustainable and green infrastructure, the county sets a benchmark for transportation resilience while reducing environmental impact.