option g urban environments find an image to represent an urban environment explain why you’ve...

Option G Urban Environments

Find an image to represent an urban environment

Explain why you’ve chosen it

What is an urban area?

• http://unstats.un.org/unsd/demographic/sconcerns/densurb/Defintion_of%20Urban.pdf

• Identify similarities and differences • Which are qualitative / quantitative?

Brainstorm these keywords!

• Urbanisation• Urban sprawl• Suburb• Suburbanisation• Counter-urbanisation• Re-urbanisation

World’s largest cities?Without looking it up! Make a prediction

• Can be measured by the municipality – the legal city

• Can be measured by the physical city – the built up portion

• Can be measured by it’s influence – how far do people commute?

• http://www.bbc.co.uk/news/magazine-16761784

In 2005 Time Magazine proclaimed Chongqing the largest city in the world

However, 30 million of those living in Chongqing are actually agricultural workers living in a rural setting

Top 20 cities 2012

• http://www.worldatlas.com/citypops.htm#.UnYgIvlBOSo

• Use the list (and a map!) • Do you notice any patterns?• Can you explain these patterns?

Urbanisation

• An important definition!

a) Growth of urban areas

b) An increasing percentage of a country’s population living in urban areas

c) The increasing development of buildings and infrastructure in urban areas.

Growing urban populations

• For the first time ever, the majority of the world's population lives in a city.

• One hundred years ago, 2 out of every 10 people lived in an urban area.

• By 1990, less than 40% of the global population lived in a city, but as of 2010, more than half of all people live in an urban area.

http://www.who.int/

• By 2030, 6 out of every 10 people will live in a city, and by 2050, this proportion will increase to 7 out of 10 people.

• Currently, around half of all urban dwellers live in cities with between 100 000 - 500 000 people.

• Fewer than 10% of urban dwellers live in megacities (defined by UN HABITAT as a city with a population of more than 10 million).

• http://www.who.int/gho/urban_health/situation_trends/urban_population_growth_text/en/

Patterns and trends of urbanisation

10 biggest cities in 1900. How does this compare to now?

•London, United Kingdom 6,480,000 people           •New York, United States 4,242,000 people           •Paris, France 3,330,000 people           •Berlin, Germany 2,707,000 people           •Chicago, United States 1,717,000 people           •Vienna, Austria 1,698,000 people           •Tokyo, Japan 1,497,000 people           •St. Petersburg, Russia 1,439,000 people           •Manchester, United Kingdom 1,435,000 people           •Philadelphia, United States 1,418,000 people          

http://news.bbc.co.uk/2/shared/spl/hi/world/06/urbanisation/html/urbanisation.stm

% living in urban areas Key patterns e.g. size, location, number of

major cities, continents, latitudes, level of development

Reasons for the pattern

1955-1965

1965-1975

1975-1985

1985-1995

1995-2005

2005-2015

TASK: Complete this table using the link above

Urban growth rates

• Suggest some reasons for the patterns and trends

• Most urbanised continents are Europe, North America, South America Oceania (the ‘developed’ world).

• However, there are more urban dwellers in Asia (40% of population=1.4 billion)

• Also urbanisation is most rapidly increasing in Africa and Asia. By 2025 almost half the population of them will live in urban areas and 80% of all urban dwellers will live in developing countries.

• So , although MEDCs have more cities, more people actually live in cities in the developing world and this is continuing to rise.

WHAT ARE THE REASONS FOR THIS?

• Define these key words;

• Millionaire cities• Megacities• World cities.

TASK

The process of urbanisation p131 study guide

To finish

• Now look back at your image.

• What annotations could you add to it using the information from today’s lesson?