San Joaquin County in California has taken a proactive stance towards emergency preparedness in transportation, focusing on ensuring operational roadways during crises like wildfires and power outages. The county implemented HyMax hydrogen fuel cell backup power at critical intersections to maintain traffic signal functionality. This initiative is part of the Regional Transportation Plan/Sustainable Communities Strategy and Regional Resiliency Implementation Plan developed by the San Joaquin Council of Governments. By integrating these strategies, the county aims to create a resilient transportation network prioritizing public safety, environmental responsibility, and operational efficiency. Traditional solutions like diesel generators and battery backup systems faced limitations, leading to the deployment of 31 HyMax hydrogen fuel cell backup systems offering extended runtime, clean operation, remote monitoring, and sustainability benefits. The successful testing of this technology during a power outage in 2024 confirmed its reliability under real-world emergencies. Safety protocols and reliability testing demonstrate the confidence in modern hydrogen fuel cell systems, enhancing public trust in sustainable infrastructure solutions. The HyMax backup power at intersections ensures secure evacuation routes, enables smooth first responder navigation, maintains traffic control, and reduces the county's carbon footprint. San Joaquin County's approach showcases a model for other municipalities looking to enhance disaster resilience and sustainability in transportation planning. By focusing on proactive, environmentally friendly infrastructure, the county reduces accident risks, lowers operational costs, increases resilience against extreme weather events, and advances sustainable energy use. Zach L. Hoiting, Senior Vice President at Western Systems, commends the county's strategic planning and sustainable technology as crucial for ensuring operational lifelines during crises.