John Alexander, Schadschneider Andreas, Chowdhury Debashish, Nishinari Katsuhiro
Institute for Theoretical Physics, Universität zu Köln, D- 50937 Köln, Germany.
J Theor Biol. 2004 Nov 21;231(2):279-85. doi: 10.1016/j.jtbi.2004.06.022.
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.
受伯德等人近期实验工作的启发，我们提出了一个关于在预先存在的蚁道上双向蚂蚁交通的模型。它以一种简单的方式捕捉了蚁道上真实蚂蚁运动的一些一般集体特征。通过分析这个模型，我们证明了车辆交通和蚂蚁交通之间存在关键的定性差异。特别是，我们预测了一些可以通过实验测试的流量异常特征。与单向模型一样，在某些参数范围内可以观察到平均速度的非单调密度依赖性。由于反向移动的蚂蚁之间的相互作用，流量在某些密度区间内可以变得近似恒定。
