We propose a generalized model of drayage operations that incorporates the coupling and precedence principles, allows for live and separation operation modes, relaxes the assumptions about fleet composition and truck size, and operates in a realistic network. The results of the experiments reveal that the model efficiently and effectively allocates container transport requests and can find close to optimal solution in reasonable time for small and medium size problems. The results also suggest the existence of a threshold strongly related to the ratio of the fleet capacity over the number of requests where the fleet is utilised most effectively.

中文翻译：

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具有异构船队，多容器尺寸和两种操作模式的集装箱拖运通用模型

我们提出了一种拖曳操作的通用模型，该模型融合了耦合和优先原则，允许实时和分离操作模式，放宽有关车队组成和卡车尺寸的假设，并在现实的网络中运行。实验结果表明，该模型有效，有效地分配了集装箱运输要求，可以在合理的时间内找到中小型问题的最佳解决方案。结果还表明存在一个阈值，该阈值与机队容量与最有效利用机队的请求数量之比密切相关。