On the consistency of urban cellular automata models based on hexagonal and square cells
Aditya Tafta Nugraha,
Ben J Waterson,
Simon P Blainey and
Frederick J Nash
Environment and Planning B, 2021, vol. 48, issue 4, 845-860
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.
Keywords: Cellular automata; urban simulation; hexagonal cells; graph theory (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:sae:envirb:v:48:y:2021:i:4:p:845-860
DOI: 10.1177/2399808319898501
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