As the tide of urban migration sweeps across the developing world, cities experience an overpowering pressure to provide basic services such as electricity and sewage treatment to an enormous amount of people building illegal shacks on city outskirts. When they fail, the slum is born - but is it possible for a city to expand without slums? In Hanoi, Vietnam, officials hope to answer this question, with a number of tactics that have led to a "culture of semi-legal construction." Read this article in The Guardian to learn how Hanoi manages to curb slums and provide a basic standard of living to its poorest inhabitants.
