城际轨道交通线网合理规模测算研究

The Reasonable Scale of An Inter-city Railway Network

为研究城际轨道交通线网规划的目标控制阶段中对线网规模的测算方法,本文以线网布局规模为测算对象,建立了以线网结构适应性最大、线网服务质量与建设投资的比值最大为目标的规模测算模型,并设计了基于ε-约束法的模型求解算法。最后,以云南省滇中城市群城际轨道交通线网规划为例,运用本文建立的模型对其线网规模进行了求解,并结合复杂网络理论对求解结果的合理性进行了分析。结果表明由本文所用方法得到的线网布局规模适中,符合我国城际轨道交通线网的一般水平,且布局形态与滇中城市群节点空间布局相吻合,验证了模型的有效性。

To determine the method to calculate the reasonable layout scale of an inter-city railway network,which is the key issue in the target controlling process in network planning,this study takes the layout scale as the object of calculation and constructs a bi-objective programming model pursuing the maximization of the degree of association between the cities that the network connects and the specific value of the network’s efficiency and investment.The algorithms based on theε-constraint method for the model solving are also included.Taking the inter-city network planning in central Yunnan province as an example,this study calculates the reasonable layout scale by applying the preamble model and analyzes the rationality of the conclusion using the theory of complex network.The result reaches the average level of the network scale in China and meanwhile matches the spatial arrangement of the cities in central Yunnan province,which verifies the generalizability of the results.