Estimation of the benefits for shippers from a multimodal transport network
Estimation of the benefits for shippers from a multimodal transport network
复制标题
评估托运人从多式联运网络中获得的收益
作者：
G. Liedtke
本文提出了一种经济评估的多式联运网络的单托盘。估计一个船舶大小选择模型，以计算托运人的反应和他们的经济利益，该运输网络。在模型中，明确考虑了影响物流决策的主要因素-仓库和存储成本之间的平衡。从物流总成本最小化问题的一阶条件出发，推导出其函数形式。运输成本以取决于货物大小和运输距离的复杂函数的形式表示，以反映运输的规模经济效应。模型参数估计的经验数据的基础上，从两个主要的德国公司。模拟结果表明，新的多式联运系统有显着的影响，改变他们有利于较小的货运量的船舶大小分布。这尤其导致仓库成本的显著降低。最后，运输政策的分析结果的一些影响：促进绿色物流和实现进一步的模式转变，从公路到铁路，公共财政支持和监管框架，使铁路能够整合小型和物流需求的货物在工业规模。
This paper develops an economic assessment of a multimodal transport network for single pallets. A shipment-size choice model is estimated to calculate the shippers’ reactions and their economic benefits from that transport network. In the model, the major factor influencing logistics decisions—the balance between warehouse and storage cost—is explicitly taken into account. The functional form is deduced from the first-order condition of the minimization problem of total logistics cost. Transport cost is expressed in the form of a complex function depending on shipment size and transport distance in order to capture the effect of economies of scale in transportation. The model parameters are estimated based on empirical data from two major German corporations. Simulations show that the new intermodal transportation system has a significant impact on the shipment-size distributions changing them in favor of smaller shipments. This leads especially to significant reductions in warehouse costs. Finally, some implications of the analytical results on transport policy are provided: To foster green logistics and achieve further modal shifts from road to rail, public financial support and the regulatory framework have to enable railways to consolidate small and logistics demanding shipments at an industrial scale.