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On the consistency of urban cellular automata models based on hexagonal and square cells

Authors :
Nugraha, Aditya Tafta
Waterson, Ben J
Blainey, Simon P
Nash, Frederick J
Source :
Environment and Planning B: Urban Analytics and City Science; May 2021, Vol. 48 Issue: 4 p845-860, 16p
Publication Year :
2021

Abstract

Cellular automata have found extensive applications in the modelling of urban systems. Calculations in cellular automata models are based on cell centroids and therefore cellular automata models are sensitive to the choices of cell size and shape. While the effect of cell size for urban simulation has been studied, discussions on the effect of cell shape on urban cellular automata models have been limited. Applications in other fields suggest there are advantages of using hexagonal cells over square cells, yet most urban cellular automata models use square cells. Using connectivity indices from graph theory, experiments in this study compared models based on hexagonal and square cells to examine the potential advantage of hexagonal cells in urban cellular automata models. This paper finds that simulation results from the model with hexagonal cells are more consistent and concludes that hexagonal cells would increase the robustness of model simulation.

Details

Language :
English
ISSN :
23998083 and 23998091
Volume :
48
Issue :
4
Database :
Supplemental Index
Journal :
Environment and Planning B: Urban Analytics and City Science
Publication Type :
Periodical
Accession number :
ejs53050826
Full Text :
https://doi.org/10.1177/2399808319898501