In the 1970s, Mayor Jaime Lerner transformed the city of Curitiba, Brazil through innovative urban planning focused on pedestrian access, public transportation, environmental protection, and social programs. He created the world's first pedestrian island in the downtown area, improving foot traffic and business. An integrated bus system with three-coach buses and tube stations increased public transportation efficiency. The city also built bike paths, parks, and emphasized environmental education and waste recycling. These changes made Curitiba a model for sustainable development and inspired other cities in Latin America.