This systems map illustrates the reinforcing dynamics behind truck traffic-related pollution in Stockton. The Business-As-Usual (BAU) loop highlights current infrastructure reinforces truck pollution leading to declines in health. The Community Cause loop shoes how advocacy groups push back, but face limited structural power within planning processes, weakening their influence. A third loop identifies the Freeway Removal scenario as a leverage point, demonstrating how dismantling the freeway could reduce environmental burdens and help reconnect fragmented neighborhoods. This map is intended for urban planners and analysts as a tool to visualize system behaviors, identify intervention points, and understand why the current harms remain.