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Phys. Rev. E 80, 037102 (2009) [4 pages]

From complex structures to complex processes: Percolation theory applied to the formation of a city

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Agnieszka Bitner1, Robert Hołyst2,3, and Marcin Fiałkowski2,*
1Department of Applied Mathematics, Agricultural University, Mickiewicza 24/28, 30-059 Krakow, Poland
2Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
3Department of Mathematics and Natural Sciences, College of Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland

See Also: Publisher's Note

Received 9 April 2009; published 25 September 2009; corrected 28 September 2009

We investigate the morphology of the spatial pattern resulting from the division of land into the parcels that is observed in the centers of the cities, by analyzing the distribution function of the parcel areas. A simple model based on a two-dimensional bond percolation is employed to mimic the process of the formation of the city. The model reproduces the empirical distribution of the parcel areas that is found to exhibit the power law with the exponent τ=2.0. We argue that the city emerges from a collection of separated settlements in a process that can be described as a structural phase transition.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.80.037102
DOI:
10.1103/PhysRevE.80.037102
PACS:
89.75.Kd, 64.60.ah, 89.65.Lm, 89.75.Da

*Corresponding author. fialkows@ichf.edu.pl

See Also

Publisher's Note: Agnieszka Bitner, Robert Hołyst, and Marcin Fiałkowski, Publisher's Note: From complex structures to complex processes: Percolation theory applied to the formation of a city [Phys. Rev. E 80, 037102 (2009)], Phys. Rev. E 80, 049902 (2009).