Chattanooga, Tennessee is known as the "Scenic City" due to its outdoor activities and surrounding mountains. It has a long industrial history but transformed itself into a sustainable city through partnerships between industries, government, and citizens. Now Chattanooga has zero-emission public transportation, bike sharing, and green industries. Its street grid and four bridges over the Tennessee River make it walkable and connected. Chattanooga demonstrates how participatory urban planning can create a clean environment, strong economy, and sense of community.