WarmUp: Journal Entry In your journals, make a list of

characteristics of urban or city life. Next, suggest some of the reasons

that people might choose to live in cities.

Finally, suggest some problems that might be associated with rapid population growth in cities.

Chapter 16.2Population & Urbanization

Objectives Explain how cities evolved & why

urbanization is such a recent event.

Identify the models that have been proposed to explain the structure of cities & summarize the theories that have been put forth to explain city life.

Megacities: Urbanization in Dhaka, Bangladesh

PBS News Hour: Megacities• Consider the elements of this clip when

going over the notes.

Urbanization the concentration of populations in cities

The Evolution of the City

Preindustrial to Industrial

The Preindustrial City cities arose about

6,000 years ago populations limited by

inefficient agricultural techniques

crowded, lacked sanitation

no designated “downtown”

built around extended family

The Industrial City Industrial Revolution

led to urbanization covers greater area,

much larger population influence of family

lessened 1790: 5% of population

in cities 1860: 20% of

population in cities Today: 75% in urban

areas

Urban EcologyConcentric Zone Model, Sector Model,

Multiple Nuclei Modelsee page 425

Urban Ecology examines the relationship between people & the urban environment

Concentric Zone Model typical city

spreads outward from the center, resulting in a series of circles or zones

Sector Model city grows in

wedge-shaped sectors outward from the center to the edges of the city

transportation determines land use

Multiple Nuclei Model city develops

around several centers of activity, or “nuclei,” devoted to specialized land use• example: stores

grouped together, car dealerships, etc.

Urban Ecology Models: Critique describe ideal types of cities

• do not account for urban sprawl, reverse migration, or urban reclamation

Examining City Life

Urban Anomie Theory, Compositional Theory, Subcultural Theory

Urban Anomie Theory the city is an

anonymous & unfriendly place & living there caries serious negative consequences

characterized by impersonal secondary groups

Compositional Theory greater diversity

of city residents leads to greater variety of lifestyles• race, ethnicity,

gender, age, education, income, occupation

Subcultural Theory people can find

others with similar interests in diverse cities

some people form close ties and subcultures

Rio De Janeiro: Favela Slums Tour Favela Slums Tour

Answer the following questions in your journal.• After watching the film, how do you feel about

the tourism business in the favelas of Rio?• Do you think that the residents are being helped

or taken advantage of? Why?• What similarities can you find with the Dhaka

video? How are these cities alike? Different?• How do you think Rio & the favelas specifically,

are going to change with the coming of the World Cup in 2014 & the Olympic Games in 2016?