Multiple Nuclei Model Ch 13. A model of town growth by C. D. Harris and E. L. Ullman 1945.

Multiple Nuclei Model Ch 13.

A model of town growth by

C. D. Harris and E. L. Ullman

1945

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21. CBD2. Wholesale3. Low income4. Middle income5. High income6. Heavy industry7. Business District8. Industrial sub.

Multiple Nuclei Model

• Distinctive land-use zones develop because some activities repel each other

• high-quality housing does not generally arise next to industrial areas

• other activities cannot afford the high costs of the most desirable locations.

• New industrial areas develop in suburban locations since they require easy access

• outlying business districts may develop for the same reason.

• Transportation improvements allowed for deconcentration

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• Some cities or conurbations have engulfed surrounding settlements or have evolved strong suburban areas around the periphery of the city.

• Both of these situations cause the 'suburbs' to function as small independent business districts with their own shops and businesses away from the main urban center.

Key factors leading to a multi nuclei model:

• need for increased accessibility to a center (not necessarily the CBD)

• to keep conflicting or competing land uses apart (eg. high cost housing and smoky factories)

• decentralization

• differences in land values

Examples of nodes (nuclei)

• An airport will attract hotels and warehouses to store items to be shipped by plane.

• A big mall will attract apartments and smaller strip malls.

• A college will attract bookstores and pizza restaurants.

• A middle class residential area will attract supermarkets.

Examples of multiple nuclei

CSUF

Fashion Mall in Florida

industry