基于网络演化方法的城市群城际铁路线网规划模型研究

摘要

Intercity railway network plays an important role in the integration of urban agglomeration, and reasonable planning is of great significance on the basis of urban agglomeration spatial structure. This paper, based on network evolution, takes node importance and economic contact intensity as major parameters of network evolution, and a planning model of the intercity railway network of urban agglomeration is constructed, under the comprehensive consideration of social economy of the specific urban agglomeration. With the analysis of technical performance and constraints of the intercity railway network, evolution mechanism and evolution algorithm are present. At last, the Chengdu-Chongqing urban agglomeration is taken as a case to validate the planning model. The result shows that this model is reasonable and efficient, and provides an important guidance on the intercity railway network planning.%城际铁路网络在城市群一体化发展中发挥着重要作用，在城市群空间结构的基础上进行合理规划意义重大。本文基于网络演化思想，将节点重要度和城市经济联系强度指标作为重要参数，在综合考虑城市群社会经济影响的基础上，构建城市群城际铁路线网布局规划模型，并对城际铁路线网的技术性能和约束条件进行分析，提出节点成长、线路连接、边权演化规则，设计网络演化机制和城际铁路网络演化算法。以成渝城市群为对象进行实证分析，得到不同参数组合下的演化结果和城际铁路线网规划方案，验证了模型的合理性和适用性，对实际城市群城际铁路线网规划工作有一定的参考价值。