交通区位线在城市群城际轨道交通线网布局中的应用

Transportation Location Theory Applied in Urban Agglomeration IRT Network Layout

针对城际轨道交通线网布局方法中定性因素太多的特点,提出以交通区位线为权重的搜索方法来布局城市群城际轨道交通线网。根据城市的交通综合重要度和经济联系度搜索出初步线网,再根据预测的起始点和实际情况对初步线网进行修正,最终给出推荐的线网,并根据城市群内部经济相互作用的强弱确定线网的建设时序。以武汉城市群城际轨道交通线网为例,验算了该布局方法的合理性及可行性。该方法可为线网布局提供定量分析的依据。

Because there are too many qualitative factors in inter-city rail transit （IRT） network layout, an algorithm of traffic location in urban agglomeration IRT network distribution is presented. According to the importance of urban comprehensive transportation, an initial route network is selected, then in accordance with the prediction of software OD and the actual situation, the initial network is revised. At the same time, considering the economic interac- tion within urban agglomeration, the level of inter-city traffic line is recommended, that will decide the construction sequence. Finally, taking the line network within Wu- han City Group as an example, the rationality and effectiveness of the line layout is verified. This paper presents a quantitative analysis method for rail line network layout.