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为探讨交通运输与社会经济发展间的适应性,为决策机构优化运输结构和改善供需结构适应性提供依据,运用信息熵理论,以区域货运供需结构适应性为研究对象,指出目前在理论研究中存在的不足和现实中存在的不适应性问题;通过分析影响货运需求结构和供给结构的主要因素,分别建立了货运需求结构和供给结构信息熵模型;建立了货运供需结构适应性的信息熵评价模型,并提出其适应性评价标准和方法。研究结论表明:不仅货运供给总量应满足货运总需求,而且其供给结构也应适应需求结构要求;货运供给结构的熵值大小应与货运需求结构的熵值大小一致,且两者熵函数的变化速率或变化趋势也应一致;货运供需结构熵函数值的相对离差系数应趋于0,适应度G(t)应趋于1。
In order to explore the adaptability between transportation and socioeconomic development, and to provide the basis for policy-making agencies to optimize the transport structure and improve the adaptability of supply and demand structure, the information entropy theory is used to study the adaptability of regional freight supply and demand structure. The paper analyzes the main factors affecting the demand structure and the supply structure of freight transportation, and establishes the information entropy model of freight demand structure and supply structure respectively, and establishes the information entropy evaluation of adaptability of freight supply and demand structure Model, and put forward its adaptability evaluation criteria and methods. The conclusion of the study shows that not only the total supply of freight should meet the total freight demand, but also its supply structure should adapt to the demand structure. The entropy value of freight supply structure should be consistent with the entropy value of freight demand structure, and the entropy function The rate of change or the trend of change should also be consistent; the relative dispersion coefficient of the entropy function value of freight supply and demand structure should be 0, and the fitness G (t) should be 1.