浙江省区域物流网络构建与鲁棒性分析

Construction and Robustness Analysis of Regional Logistics Network in Zhejiang Province

文章为构建浙江省区域物流网络,分析各城市物流发展水平,利用修正后的引力模型,量化城市之间的物流联系强度,并在此基础上结合复杂网络,分析该省区域物流网络的拓扑结构。为防止突发事件造成该省物流网络瘫痪,文章利用Python工具,通过随机攻击、蓄意攻击和基于贪心策略的蓄意攻击三种攻击方式,对区域物流网络进行分析比较。研究发现,浙江省不仅地级市可以带动物流发展,一部分市级以下地区的物流发展能力也较强,同样可以带动物流发展。从物流鲁棒性仿真模拟分析来看,基于贪心策略的蓄意攻击方式对物流网络的影响最大,针对物流发展较好的城市应得到重点保护,防止网络瘫痪。

In order to build a regional logistics network in Zhejiang Province and analyze the logistics development level of each city,this paper uses the revised gravity model to quantify the logistics connection strength between cities,and on this basis,combined with complex networks,analyzes the topological structure and network characteristics of the regional logistics network in Zhejiang Province.In order to prevent unexpected events from paralyzing the logistics network in this province,this paper uses Python tools to analyze and compare the regional logistics network through random attack,deliberate attack and deliberate attack based on greedy strategy.It is found that not only prefecture-level cities in Zhejiang Province can promote the development of logistics,but also some areas below the municipal level have strong logistics development capabilities,which can also promote the development of logistics.From the simulation analysis of logistics robustness,the deliberate attack based on greedy strategy has the greatest impact on logistics network,and cities with better logistics development should be protected to prevent network paralysis.