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URBAN GEOGRAPHY.

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Presentation on theme: "URBAN GEOGRAPHY."— Presentation transcript:

1 URBAN GEOGRAPHY

2 Migration to the Cities
Occurs VERY quickly Already predominant urban atmosphere Uneven distribution “City” is a recent phenomena

3 Ancient Cities and Early Civilizations
Egalitarian societies In Southwest Asia things began to change about 6000 BCE Cities and states Growing villages  political systems  state Anthropologists Wright & Johnson Formative era

4 Function and Location of Ancient Cities and Early Civilizations
Importance of geographic location Urban elite: group of decision makers and organizers Mesopotamian cities Theocratic centers Urbanization not simultaneous By modern standards early cities were not large

5 Theocratic Centers of Mesoamerica

6 Establishment of Cultural Hearths

7 Diffusion to Greece Urbanization spread from Mesopotamia in several directions During the third millennium BCE Greece became one of the most highly urbanized areas on Earth Development in Greece had a global impact Urban traditions passed on to the Roman Empire

8 The Roman Urban System The largest developed on Earth at that time
A transport network Greek city grid pattern Post-Roman decline Many causes of empire's failure Urban growth elsewhere Xian, China = “Rome of East Asia” Southern margin of the Sahara Mayan urbanization City of Teotihuacán may have had more than 100,000 people

9

10 Post-Roman, Pre-industrial Europe
Medieval Europe Muslim invasion & Crusades Urban environments Better weapons = easier invasions Need STRONG cities ~17th century, mostly icky Left for “New World” ASAP

11 Post-Roman, Pre-industrial Europe
Sjoberg Model of urban places Cities are products of their societies Divided into four categories: Folk-preliterate Feudal Preindustrial Urban-industrial Recognized primate cities Generalizations; not all cities behave the same

12 Post-Roman, Pre-industrial Europe
The global spread of urbanization Silk route; Chinese architecture; “urban banana” European maritime exploration The mercantile city Emergence of the manufacturing city City planning improvements Today’s transition: Transportation innovations  modernization of the American manufacturing city Modern city NOT stabilized

13 Urban Geography: Location, Pattern, and Structures of Cities
Relationships can be measured and mapped Every city and town has an adjacent region within which its influence in dominant Hinterland—German word meaning the land “behind” the city Large cities tend to lie farther apart than smaller ones Evolution of cities

14 Ranking Urban Centers Urban hierarchy and functions of clustered settlements A hamlet < than 100 people; may or may not have an urban function A village offers many services A town = higher level of specialization and hinterland The city Megalopolises (megalopoli?) Bosnywash

15 Place & Location Growth of Shenzhen, China

16 Place & Location Urban site Paris, France
The actual physical qualities of the place a city occupies Paris, France The original site of Paris was an island

17 Paris today

18 Place/Location Urban site
Site problems of Mexico City & Bangkok *The role of a city's site can change over time

19 The Changing City Different atmospheres
John Borchert’s four-stages of the American metropolis Sail-wagon epoch ( ) Iron-horse epoch ( ) Steel-rail epoch ( ) Auto-air-amenity epoch ( ) Today Borchert would add a fifth: High-Technology Epoch (1970 to present)

20 Models of Urban Structure
Cities exhibit functional structure Central business district (CBD) Central city Suburb North American cities? 3 models

21 Modeling the North American City

22 Modeling the North American City

23 Modeling the North American City

24 Modeling the North American City
Urban realms Early post-war period, reduced interaction between the central city and suburban cities Outer cities became more self-sufficient

25 Models of Urban Structure
Modeling the North American city “Urban realm” Los Angeles

26 Models of Urban Structure
Outer city growth since 1960s By 1973, American suburbs surpassed central cities in total employment Outer cities = “edge cities” Equal partners in city shaping processes

27 Socio-cultural Influences on Cities
Neighborhood spatial differences Help explain the internal ethnic geography Ethnic neighborhoods Redlining Blockbusting Racial steering Perceived dangers of urban life led to gated communities

28 Patterns of Cities Rank size rule Urban functions
The population of a city or town will be inversely proportional to its rank in the hierarchy Urban functions Every city and town has an economic base Basic sector Non-basic sector Functional specialization Employment structure All cities have multiple functions

29 Patterns of Cities Chauncy Harris maps, 1943

30 Central Place Theory Central places
CPT developed by Walter Christaller Began with a simple set of assumptions Surface of ideal region would be flat and have no physical barriers Soil fertility would be the same everywhere Also assumed an even distribution of population and purchasing power, and uniform transportation network Assumed a constant maximum distance for sale of any good or service produced in a town would prevail in all directions from urban center

31 A logical extension of CPT
An example of CPT A logical extension of CPT

32 Central Place Theory The real world
Physical barriers, resource distributions, etc. create modification of the spatial pattern Christaller stimulated urban and economic geography in general and location theory in particular

33 GLOBAL URBANIZATION

34 Europe in the Vanguard Western Europe
Population around 1800 was very rural Two-hundred years later it was about 80 percent urban Rapid urbanization was the beginning of a worldwide process Cities founded as colonial headquarters in Asia and Africa

35 Europe in the Vanguard Western Europe Define an “urban resident”…
Role of a city’s relative location during the Industrial Revolution Cities grew by agglomeration: the spatial process of clustering by commercial enterprises for mutual advantage and benefit Industrial cities went through a phase of specialization Changes in where the world’s largest cities are located

36 World Urbanization

37 Cities > 1 Million People

38 North America Urbanization

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40 Modeling the Modern Latin American City

41 Modeling the Modern Southeast Asian City

42 Modeling the Modern Subsaharan African City

43 Reading & Resource Reading: Walter Christaller & CPT Resource:
A quick look at Christaller’s contribution Resource: Video: Nuewirth, Shadow&SquatterCities A .zip file from the site


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