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针对现有城市地铁网络结构评价研究的不足,该文提出运用中心性评价方法分析地铁网络中站点的重要程度,实现对网络结构的评价:引入中心性方法的度中心性、介中心性和邻近中心性指标,提出一种基于客观权重赋权法的系统中心性评价指标,对地铁网络的中心性进行计算。以广州市为研究区域,分析了广州市地铁网络中心性空间分布和频率分布特征。结果表明,较现有线网,广州市地铁规划线网各项中心性指标分布更为均匀,市辖区间联系更为紧密。中心性评价指标能够对非采用单一票制的广州地铁系统的网络结构进行评价,为规划方案的制定提供参考。
In view of the lack of research on the metro network structure evaluation of the existing cities, this paper proposes to use the central evaluation method to analyze the importance of the stations in the metro network and to evaluate the network structure. The centrality, centercenter and proximity Centrality index, this paper proposes a system-centric evaluation index based on objective weight-weighted method to calculate the centrality of subway network. Taking Guangzhou as the research area, the spatial distribution and frequency distribution characteristics of Guangzhou metro network center are analyzed. The results show that compared with the existing line network, the distribution of various central indicators of the Guangzhou Metro Planning Line Network is more uniform and the contact between municipal districts is more closely linked. The central evaluation index can evaluate the network structure of Guangzhou metro system which is not a single ticket system and provide a reference for the formulation of planning plans.