How did modernist planning reshape cities after World War II?

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After World War II, modernist planning profoundly reshaped cities by prioritizing large-scale, functionalist development and the rational organization of space. Guided by the Congrès International d’Architecture Moderne (CIAM) and architects like Le Corbusier, this approach emphasized the use of new materials and technologies to create replicable, efficient urban environments.123

Key characteristics of this transformation included:

  • High-Rise and Green Space: Planners favored high-rise structures separated by open green spaces, a model often described as "towers in the park," intended to provide inexpensive, large-scale housing.12
  • Separation of Uses: Modernist planning strictly segregated urban functions, separating residential areas from commercial and industrial zones.12
  • New Towns: Many European governments undertook the construction of "new towns" on the urban periphery to manage population density and prevent haphazard growth.4
  • Urban Renewal: In the United States, the federal government subsidized large-scale land clearance and the construction of public housing, often resulting in the demolition of existing neighborhoods.1

By the 1960s, these methods faced significant criticism, notably from Jane Jacobs, who argued that such planning destroyed the complex social fabric of cities and imposed an inhuman orderliness.2