城市道路复杂网络结构化等级分析
Structural Hierarchy Analysis of Streets Based on Complex Network Theory
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摘要: 根据复杂网络理论提出了一种城市道路网结构化分析与结构等级建模方法。首先,根据城市道路链生成对偶图;然后,分析路网几何结构,对由城市道路链生成的对偶图进行中心性测度分析;集成各项结构指标进行道路等级建模,以保持各个指标的结构信息;最后,根据集成指标分析城市道路的结构重要性、划分道路等级并保持道路网的连通性。实验结果表明,通过所提方法进行的道路结构化等级分析能够反映道路网中包含的等级结构特征,而且与单一指标和现有的道路分级相比,集成各项结构指标后划分的道路等级能够更好地符合道路网固有的等级特点。Abstract: A complex network analysis method is proposed to estimate the hierarchies of urban road networks.The method is based on dual graph generated by the strokes of urban networks.Structural hierarchies of strokes are analyzed and different importance values of roads are calculated via each structural parameter evaluation.Finally,a multiple-criteria indices modeling algorithm is implemented to maintain the information of each structural index.Experimental results show the validities of this method.Structural hierarchy of strokes can reflect the structure characteristics of urban road networks.Compared with the single criterion and traditional road classification,the hierarchical levels division via multi-criteria integration is better fit the principle of perceptual grouping.
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