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| 20.33 | Common city component-City Regions |
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| A region (model) is an aggregation of one or more centres, precincts and areas. |
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| 20.33.1 | A city can be defined as a region model |
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| All cities may be defined as single regions or clusters of regions. As such, all historic and current cities may be defined as living models of CIVILA. |
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| 20.33.2 | Region models as Regional centre models |
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| While there are millions upon millions of potential combinations of centres, precincts and areas, all region models may be defined by a simpler model based on their common centre model. |
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| Even with just centres, there are tens of thousands of combinations available in mono, dual, triple and multiple relationships. |
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| 20.33.3 | The limited number of regional centre models used for cities |
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| Of all the tens of thousands of possible geometric combinations, all human cities built to date may be defined by a limited set of regional centre models. |
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| Not only is their a limit to the number of regional centre models used for human cities, but periods of history represent the birth, death and domination of a few models. The city associated with the birth or death of a model can be classed as a “model city”. |
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Copyright © 2009 UCADIA. All rights reserved. |
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