University of California Institute of Transportation Studies

This report presents a comprehensive framework for prioritizing capital investment in urban road infrastructure, with a focus on resilience, safety, and equity. The framework addresses the growing challenges of aging road networks, increased traffic demand, and the risks posed by natural hazards such as landslides and wildfires. Using a multi-dimensional tool, the report evaluates road segments in Los Angeles hillside regions based on their importance within the transportation network, physical condition, and hazard exposure. Additionally, it incorporates demographics to ensure that infrastructure investments prioritize underserved communities. The results are further enhanced through a probabilistic framework designed to assess landslide risks in earthquake-prone regions. By combining structural importance with demographic data and hyperlocal assessments, cities can make more informed and equitable infrastructure investment decisions. Recommendations include prioritizing investments in critical roadways that serve vulnerable populations and incorporating advanced technology for road monitoring. This research provides a scalable, data-driven approach that can be applied to other urban regions to enhance road network resilience and ensure the fair distribution of resources.