Summary: College 14: Spatial Modelling
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2 Spatial modelling
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There are two strategies for spatial modelling?
- Simple strategy: use scenarios
- Elaborate strategy: model land-use as well -
What is the main mechanism for the transportation and spatial system?
Transport system -> accessibility -> land use -> activities -> -
What is the crucial link element in the wegners circle?
transport -> accessibility -
What are local conditions that play a major role for the location of settlements?
- Safety
- Water and food
- Natural resources
- Politics
- Accessibility -
21 Classical theories on land use
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What are the classical models use for land use?
- Bid-rent concept (Von Thünen)
- Competition for market (Christaller)
- Agglomeration effect (Hotelling) -
What are the main characteristics for the bid-rent concept?
- Producers want to sell goods
- Owners rent the land to producers (owners let the producers bid)
- Producers will bid a rent which they still can make profits -
What are the characteristics for competition for market model?
- Evenly distributed population of self-sufficient farmers
- Farmers can produce beer for a certain area
Producing for a larger area:
- Cheaper production process
- More expensive distribution -
What is the example for agglomeration effects?
Assume a beach of 1 km long where the visitors are uniformly distributed along the beach.
What are the best locations on this beach for two ice vendors? -
What are the three main findings on model land use models?
- Simple economic models demonstrate that transportation affects land use
- Competition of competitors for a market suggests a spatial pattern
- Competition of competitors for a market suggests the existence of agglomeration factors -
33 Accessibility
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What is a potential value (accessibilitiy)?
Sum of all clients/ jobs/ etc. that can be reached within a certain distance/time
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