San Francisco had a very successful “highway revolt” in the 1950s and 1960s, but popular movements took several more decades to achieve planning that was more accountable to neighborhoods. However, bicycle, open space, and healthy city planning emerged, along with estuary and stream restoration. The Golden Gate National Recreation Area became a model urban park incorporating civic environmental approaches. Sustainability planning was introduced in the 1990s. Among the city’s many challenges, not the least are economic inequality, housing prices, and homelessness.