What images come to mind when we think of major Brazilian cities? Perhaps traffic jams, pollution, insecurity, and noise. Perhaps crowds of people coming and going. Pedestres. Bicycles. Buses. After all, eight out of ten Brazilians live in urban areas—regions that have undergone rapid urbanization. Over the last six decades, the country's population grew from 70.2 million to 209.3 million, and the proportion of urban dwellers surged from 44% to the current 85%.