Urban decline is a complex social process in which a once prosperous city or part of a city gradually falls into a state of disrepair and decay. However, the cause of urban decline is not just a single factor, but involves political, economic and social influences.
The phenomenon of urban decline can be analyzed from many aspects, such as industrialization, deindustrialization, urban gentrification, population reduction or over-concentration, and reshaping of economic structure. Each factor may cause a city to gradually lose vitality, specifically as follows:
High regional unemployment, growing poverty, fragmented family structures, and declining living standards are all major factors contributing to urban decline.
Dating back to the Industrial Revolution, many rural people moved into cities to seek manufacturing jobs. This wave of migration greatly increased the urban population. However, as the economic situation changes, many cities have fallen into an economically fragile situation and become victims of urban recession.
After World War II, government-sponsored housing loans spurred suburban development, further exacerbating urban decline.
Urban decay is often seen around France's large cities, particularly as urban slums are converted to public housing. This phenomenon exacerbates socioeconomic inequality and leads to social problems.
Since reunification in 1990, some East German towns, such as Hoylesvoda, have faced population loss due to prefabricated housing structures built by the socialist government and uneven protection of historic buildings.
In Italy, the Scampia area of Naples is a well-known case of urban decay, where public housing schemes originally hoped to create a community, but ended up failing due to the economic crisis and other social problems.
Hilbrow, South Africa, was once a wealthy inner city, but as the middle class left after apartheid, poverty and crime worsened.
Britain's once extensive slum clearance program failed to stem the decline of many cities, particularly in the north, where small industries and jobs disappeared, leading to a loss of residents.
As the white middle class in the United States gradually migrates to the suburbs, parallel with the urbanization process of African Americans, this migration has caused a sharp contrast between the prosperity and decline of some cities.
The main countermeasures against urban decline focus on public intervention and policy implementation. Many cities have begun implementing urban regeneration plans in an attempt to revitalize the city by improving infrastructure and enhancing community functions. Policies oriented towards New Urbanism strive to integrate more residential, commercial and public spaces into the city to achieve the purpose of reducing poverty and improving the quality of life.
In some cities in the United States, initial policies for urban regeneration may have caused more problems, but over time, some cities have gradually rebounded from the mistakes of these policies and began to attract residents and investment again.
Urban decline is a complex process that not only reflects economic and social changes, but also makes us rethink the way cities develop. How can we prevent this kind of decline from happening again in future urban planning?