Collective effects in traffic on bi-directional ant trails

John, Alexander ; Schadschneider, Andreas ; Chowdhury, Debashish ; Nishinari, Katsuhiro (2004) Collective effects in traffic on bi-directional ant trails Journal of Theoretical Biology, 231 (2). pp. 279-285. ISSN 0022-5193

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Motivated by recent experimental work of Burd et al., we propose a model of bi-directional ant traffic on pre-existing ant trails. It captures in a simple way some of the generic collective features of movements of real ants on a trail. Analysing this model, we demonstrate that there are crucial qualitative differences between vehicular- and ant-traffics. In particular, we predict some unusual features of the flow rate that can be tested experimentally. As in the uni-directional model a non-monotonic density-dependence of the average velocity can be observed in certain parameter regimes. As a consequence of the interaction between oppositely moving ants the flow rate can become approximately constant over some density interval.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Cellular Automata; Ant Trails; Collective Effects; Computer Simulations
ID Code:7929
Deposited On:25 Oct 2010 09:18
Last Modified:03 Feb 2011 04:35

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