sao paulo site visits were aimed at surveying government, private and informal responses to issues of density associated with the megalopolis. distinguished architect and urban planner jorge wilheim, pictured below, offered insight to subsequent area travels including Lina Bo Bardi's SESC Pompeia Cultural Center, low-rise clay tile settlements susceptible to mudslide, recent efforts to link informal settlements to state sanctioned new construction, passive design of bioswales for runoff treatment, and speculative "green" development for a growing suburban middle class.