【摘要】 以研究非线性科学的分形理论为基础,建立了公路规模与经济产出的分形模型。该模型的实证分析表明:公路规模与经济产出之间具有广义的分形性质及分维数,反映了经济与公路运输系统性状的关系;在公路运输系统结构良好稳定的情况下,分维数应相对稳定,从发展趋势来看,分维数有提高的趋势;各省的公路发展不够均衡,从全国总体来看,公路运输系统还不能充分适应经济发展的要求。更多还原

【Abstract】 Based on fractional theory of nonlinear science,authors set up the fractal model of highway sizes and economic outputs.Practical example analysis of model indicates that the system has generalized fractal nature and fractal dimension between highway sizes and economic outputs which reflect the relation between economy and highway transport system nature.If the highway transport system is all right,the fractal dimension should be steady and can be improved from a long period.The development of highway isn’t balancing in different provinces and the highway transport system doesn’t fit the economy development in China.更多还原