ABSTRACT We study the dynamics of a class of bi-agent logistics systems consisting of two types of agents interacting on an arbitrary complex network. By approximating the system with simple microscopic models and solving them analytically, we reveal some universal dynamical features and propose applications of such features for system optimisations. Large-scale agent-based numerical simulations are also carried out to explore more realistic and complicated systems, with interesting emergent behaviours that can be well understood from our analytical studies. Using the taxi system as a typical logistics system with commuters and empty taxis as two types of agents, we illustrate two dynamical phases with distinct behaviours, separated by a phase boundary that can be identified as the optimal number of taxis for a particular taxi system. These features and the tuning of the optimal number of taxis can be applied to various situations, including taxi systems allowing real-time dynamical ride-sharing.

中文翻译：

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出租车式物流系统的动力学：理论和微观模拟

摘要我们研究了一类双代理物流系统的动力学，该系统由在任意复杂网络上交互的两种类型的代理组成。通过用简单的微观模型逼近系统并对其进行解析求解，我们揭示了一些通用的动力学特征，并提出了这些特征在系统优化中的应用。还进行了大规模的基于代理的数值模拟，以探索更现实和更复杂的系统，其中有趣的涌现行为可以从我们的分析研究中很好地理解。使用出租车系统作为典型的物流系统，通勤者和空出租车作为两种类型的代理，我们说明了具有不同行为的两个动态阶段，由相边界分隔，相边界可以识别为特定出租车系统的最佳出租车数量。