Generating urban forms from diffusive growth
AbstractIn this paper, a formal model of diffusion-limited aggregation is presented which can be used to generate a continuum of urban forms from linear to concentric. A brief derivation of this continuum model is presented in terms of its relationship to potential theory, and a method for its solution is outlined. The forms produced by the model are subject to fractional power laws which relate the occupancy of sites and densities to distances. Fractal dimensions can be derived from these fractional powers, and conventional and fast methods of estimation are introduced. A large-scale simulation provides the baseline for comparison and its average fractal dimension is estimated as 1.701 � 0.025 from thirty aggregates. The effect of constraining the physical limits of the lattice on which such aggregates are grown is explored and the model is then used to generate a continuum of forms determined by a control parameter which distorts the potential field of the model. A series of forms from the linear with fractal dimension close to 1 to the concentric with a fractal dimension near to 2, are grown. The model is then applied to urban development in the town of Cardiff and various simulations are attempted which point the way to further research.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Bibliographic InfoArticle provided by Pion Ltd, London in its journal Environment and Planning A.
Volume (Year): 23 (1991)
Issue (Month): 4 (April)
Contact details of provider:
Web page: http://www.pion.co.uk
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Geoffrey Caruso & Gilles Vuidel & Jean Cavailhès & Pierre Frankhauser & Dominique Peeters & Isabelle Thomas, 2011. "Morphological similarities between DBM and a microeconomic model of sprawl," Journal of Geographical Systems, Springer, vol. 13(1), pages 31-48, March.
- Jean Cavailhès & Pierre Frankhauser & Dominique Peeters & Isabelle Thomas, 2010.
"Residential equilibrium in a multifractal metropolitan area,"
The Annals of Regional Science,
Springer, vol. 45(3), pages 681-704, December.
- Isabelle Thomas & Jean Cavailhes & Pierre Frankhauser & Dominique Peeters, 2006. "Residential Equilibrium in a Multifractal Metropolitan Area," ERSA conference papers ersa06p151, European Regional Science Association.
- CAVAILHES, Jean & FRANKHAUSER, Pierre & PEETERS, Dominique & THOMAS, Isabelle, . "Residential equilibrium in a multifractal metropolitan area," CORE Discussion Papers RP -2266, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- CAVAILHES, Jean & FRANKHAUSER, Pierre & PEETERS, Dominique & THOMAS, Isabelle, 2009. "Residential equilibrium in a multifractal metropolitan area," CORE Discussion Papers 2009045, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Neil Hammond).
If references are entirely missing, you can add them using this form.