Aphg urban land models
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Transcript of Aphg urban land models
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Urban Land ModelsUrban Land ModelsAP Human GeographySummit International Preparatory
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What do we always say What do we always say about models?about models?Most importantly – they are just modelsModels only represent patterns in spaceThe landscape does NOT look exactly
like the modelModels are thus representations of the
landscape to help better understand patterns
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Three Classic Urban Models
Other Urban Models
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Burgess Concentric Zone Burgess Concentric Zone ModelModel
http://www.lgfl.net/lgfl/leas/barnet/accounts/migration/web/Land%20Use/documents/burgess-re-done.jpghttp://www.lgfl.net/lgfl/leas/barnet/accounts/migration/web/Land%20Use/documents/burgess-re-done.jpg
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Characteristics of Concentric Characteristics of Concentric ZoneZone
en.wikipedia.org/wiki/Ernest_Burgessen.wikipedia.org/wiki/Ernest_Burgess
Burgess studied 1920s Chicago to make this model
5 concentric zones Burgess suggested
that immigrants lived in inner zones which caused affluent residents to move further out
Concentric Zone’s weakness is that it does not allow for change in the city
Concentric Zone does not allow for physical geographic barriers
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Or, how about this?Or, how about this?
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Hoyt Sector ModelHoyt Sector Model
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Hoyt Sector ModelHoyt Sector Model Late 1930s Answered the drawbacks
of Burgess Model Hoyt said growth
created pie-shaped urban structure
Hoyt said his pie-shaped zones could reach from the Core (CBD) to the edge of the city (e.g. low rent sector 3 from CBD to outskirt of city)
Sector Model says that the CBD is not as important as Burgess indicated
Sectors were developed along transport routes (e.g. highways, RRs, etc.)
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Or, how about this?Or, how about this?
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Harris & Ullman – Multiple Harris & Ullman – Multiple NucleiNucleihttp://teacherweb.ftl.pinecrest.edu/snyderd/APHGhttp://teacherweb.ftl.pinecrest.edu/snyderd/APHG
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Multiple NucleiMultiple Nuclei 1940s Harris & Ullman
hypothesized the CBD was further losing its dominance
CBD no longer the nucleus of the modern city, thus emergence of ‘nuclei’
Reflects decentralization and nucleation of urban functions
Nuclei are disconnected and do not necessarily rely on each other
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Or, how about this?Or, how about this?
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Let’s look at all three nowLet’s look at all three nowwww.csiss.orgwww.csiss.org
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Urban Realms ModelUrban Realms Modelwww.csiss.orgwww.csiss.org
Hartshorn and Mueller
1980sModeled after
cities like Atlanta and Los Angeles
Further metamorphosis of multiple nuclei
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World Urban ModelsWorld Urban Models www.macalester.edu/.../amartin/urbanstruct.htmlwww.macalester.edu/.../amartin/urbanstruct.html www.macalester.edu/.../tsadowy/Jabotek.html www.macalester.edu/.../tsadowy/Jabotek.html
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Let’s look at all three nowLet’s look at all three now