基于节点重要度的城市群城际轨道交通路网布局

摘要

为了使城市群城际轨道交通线网布局符合城市群发展的需要，提高轨道交通路网的整体效益，本文以环鄱阳湖城市群为例，分析了城市群空间布局和现有城市交通路网布局的现状，把公路网规划中的节点重要度理论和交通区位论中的交通线干涉理论引入到城市群城际轨道交通线网布局中，综合分析结果，确定各节点在城市群城际轨道交通线网中的重要度。然后以此为基础，通过系统聚类分析，将节点分类，并运用图论求解交通网络的最优树，在交通网络最优树的基础上运用逐层展开交通网络布局的方法，最终形成环鄱阳湖城市群城际轨道交通路网布局结果。%In order to make the layout of intercity rail transit network meet the needs of urban agglomeration development and to improve the overall effectiveness of the rail transit network, this paper, by taking Poyang lake urban agglomeration as an example, analyzes the urban agglomeration spatial layout and the present situation of the existing urban traffic road network layout. The paper introduces the node importance theory of highway net-work planning and the traffic location theory of communication interference theory into the urban agglomeration of intercity rail transit network layout. With the comprehensive analysis, we determine the importance of each node. Then on this basis, through the system clustering analysis, we categorize nodes and use graph theory to solve the champion tree of the traffic network, based on which, we use the drill-down transportation network layout method to eventually form the city intercity rail transit network layout of Poyang lake ring.