Abstract

The layout of functional areas has a great impact on the implementing of a logistics park. Existing layout models with multiple planning objectives and influencing factors are too complex to be solved. This article puts forward a two-stage layout method for functional areas in logistics parks combining a layer-by-layer analysis process and a multi-objective programming model. Base on the rational setting of functional areas, the optimization of operational processes and the quantification of the interrelations between functional areas, some green logistic goals are achieved in two stages. In the first stage, the method aims at maximizing the comprehensive relationship among functional areas and obtaining the layout structure by the layer-by-layer analysis process. In the second stage, a multi-objective planning model is established to get the location and shape of each functional area, with the goals of minimizing the material handling costs and maximizing the spatial utilization rate. A genetic algorithm is designed to solve the model. Finally, an example is put forward to verify the feasibility of the two-stage layout method, and the comparison with the previous general model is presented. This article provides a new method for the layout planning of function areas in green logistics parks.

Highlights

  • A reasonable layout of function areas in a logistics park can reduce the internal material handling costs, improve the spatial utilization, and optimize the coordination of different functional areas, so as to achieve the goal of green logistics.[1]

  • The existing layout methods for planning a logistics park mostly focus on the systematic layout planning (SLP) method and the mathematical optimization model

  • For a green and efficient logistics park, the functional areas need to be arranged with the goals of maximizing the comprehensive relationship among functional areas, maximizing the spatial utilization, and minimizing the material handling costs

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Summary

Introduction

A reasonable layout of function areas in a logistics park can reduce the internal material handling costs, improve the spatial utilization, and optimize the coordination of different functional areas, so as to achieve the goal of green logistics.[1]. From the view of green logistics, the main layout problem is to obtain the locations and shapes of functional areas with their proper relationships, a low cost of material handling, and a good spatial utilization. To solve the first problem above, this article adopts the framework of SLP and puts forward a systematic layout method for logistics parks It starts from the setting of functional areas and the design of operation process. For a green and efficient logistics park, the functional areas need to be arranged with the goals of maximizing the comprehensive relationship among functional areas, maximizing the spatial utilization, and minimizing the material handling costs. A layer-by-layer analysis method is designed to obtain the layout structure with the goal of maximizing the integrated interrelations of functional areas.

Define four sets as follows: A
Determine the relationship between A and B
NÀ1 XN
À F1 min F1 max À F1 min
Result
Result analysis
Conclusion
À F3 min
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