URBANIZATION or HOW CITIES GROW

URBANIZATIONor

HOW CITIES GROW

Geography 1050

The geography of cities

Outline

1. Global patterns of urbanization

2. Differences in urbanization between MDCs and LDCs

3. Urbanization and the population question

4. Urban service provision and urban economies in LDC cities

URBANIZATION & CITIES

• Urbanization refers to the proportion of people in living in cities.

• It also refers to the process in which rural populations move to urban areas.

• Urbanization refers to all of the cities in a country, considered as an urban system.

• The urban system is the network of individual cities within a region or country.

The World At Night

The United States,The World

And Europe At Night

Urban and Rural Population,Less Developed Countries

1950 to 2025

Urbanization

• The urbanization curve is typically logistic or S-shaped

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

% of population livingin urban areas in

major world regions,1950, 1975, 2000 and 2025

~3X

~4X

<1.5X

~3X2X

Sources of Urbanization

• The urban system of a country grows mainly by:

1. Natural population increase (births – deaths)

2. Migration from rural areas (especially in countries with large rural populations)

3. Immigration from other countries (especially in Europe and North America)

4. Reclassification of urban boundaries to encompass formerly rural areas

Outline





Urbanization in MDCs and LDCs

• MDCs– Slow pre-industrial growth

– Rapid industrial growth

– Slows again once most previously rural populations are in cities

– Europe, North America, Australia and Japan, the population is 75% to 80% urban.

– Canada is 80% urbanized.

• LDCs– Rapid urbanization without

proportional industrialization (population growth, land tenure)

– By 2020 majority of LDC population will live in urban areas of 1 million+

– By 2020 most megacities of 10 million+ will be in LDCs

Urbanization

• The urbanization curve is typically logistic or S-shaped

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

MDC urbanization

LDC urbanization

Urban Growth is Speeding Up

Time required to reach 2 million population:

Rome, Italy 2000 years

Vienna, Austria 400 years

Vancouver, B.C. 115 years

Shenzhen, China 20 years

Share of World Population Growth Urban and Rural Areas LDCs and MDCs 1950 to 2025

• Over the next quarter century, increases in urbanization will be almost entirely attributable to sub-Saharan Africa and Asia

Cities with 10 million or more people2015

Outline





Share of World Population Growth Urban and Rural Areas LDCs and MDCs 1950 to 2025

• Over the next quarter century, increases in urbanization will be almost entirely attributable to sub-Saharan Africa and Asia

Urbanization & the population question Thomas Malthus and Malthusianism

“I SAID that population, when unchecked, increased in a geometrical ratio, and subsistence for man in an arithmetical ratio.”

Thomas Malthus. 1798. An Essay on the Principle of Population

Available at http://cepa.newschool.edu/het/

1766-1834

Urbanization & the population question

Time

Po

p. Sub

sist

enc

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Urbanization & the population question Thomas Malthus and Malthusianism

• Solution to unchecked population growth: inculcate ‘middle-class’ values in the ‘lower-classes’

– Advocated universal sufferage, state-run education

• But his analysis of population growth has been used to naturalize the idea of ‘overpopulation’ as a purely mathematical problem ---> buries struggles for power (politics) in apparently objective language of math.

1766-1834


Source: Marshall, J. 2005








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URBANIZATION or HOW CITIES GROW