Urban planning is not just a Western practice—it is a global necessity. This chapter takes readers around the world, showing how planners in rapidly urbanizing countries face challenges very different from those in North America or Europe, and what we can learn from each other.
The chapter begins with an astounding statistic: over half of the world's population now lives in cities, and nearly all future population growth will occur in urban areas of developing countries. Many of those cities are growing at breathtaking speed—Lagos, Dhaka, Mumbai, and Kinshasa are adding millions of residents each decade, often without the infrastructure to support them.
The most visible result is informal settlements, often called slums: dense, unplanned neighborhoods lacking clean water, sewers, electricity, paved roads, and legal land titles. The chapter explains that informal settlements are not failures of planning—they are responses to a failure of formal planning. When governments do not provide affordable land and housing, people build their own.
Planners in global cities use a range of approaches. Upgrading provides basic infrastructure—water taps, toilets, drainage, paths, streetlights—within existing informal settlements, rather than demolishing them. Sites and services programs provide serviced plots where residents can build incrementally. Land titling gives residents legal security, enabling them to invest in their homes and access credit.
The chapter also discusses mega‑cities—urban regions with over 10 million residents—and the particular planning challenges they face: coordinating across multiple jurisdictions, managing regional transportation, providing affordable housing, and maintaining environmental quality.
Transit‑oriented development is a global solution. Cities like Curitiba, Brazil (Bus Rapid Transit) and Hong Kong (rail plus development) show how to build dense, walkable neighborhoods around transit stations, reducing car dependence even at high densities.
The chapter addresses climate change in the global south. Many fast‑growing cities are in coastal areas vulnerable to sea‑level rise and storms, or in arid regions facing water scarcity. Planners must integrate climate adaptation into every decision.
Another key topic is participatory planning. In many countries, top‑down planning has failed. Successful efforts engage residents directly: community mapping, participatory budgeting, neighborhood planning committees, and co‑design of public spaces.
The chapter ends with a powerful conclusion: global urbanization is the defining trend of the 21st century. The choices planners make today—in rapidly growing cities of Asia, Africa, and Latin America—will shape the lives of billions of people for generations. And the lessons flow both ways: wealthy countries can learn from frugal, community‑led innovations in the developing world, just as developing countries can learn from established planning systems. Planning is a global conversation, and we are all in it together.
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