分析通道经济带内封闭线路出入口地区存在的优势区位及其原因;以通道内存在封闭的高等级公路与平行的非封闭普通低等级公路的不同情况,建立了三个数学模型,推导出存在的三种聚集状态,得到了封闭线路对经济带具有强制聚集作用及其聚集作用的产生和大小是由线路本身的空间特征——出入口的分布以及运输费用函数决定的结论;并根据模型的基本条件,将其扩展到其他运输方式线路,说明了模型对其他类型通道的可解释性,这对于区域运输线路的选择、产业布局和选择具有指导意义。 Analysis of the advantages and disadvantages of the closed circuit entrance and exit areas within the channel economic belt and the reasons for them; and based on the different situations of the closed high-grade highway and the parallel non-closed ordinary low-grade highway in the channel, three mathematical models are established to deduce the existing The three kinds of aggregation state are obtained, and the formation and size of the closed circuit on the economic belt are obtained by the spatial characteristics of the route itself - the distribution of entrances and exits and the transportation cost function. According to the basic conditions of the model , And extends it to other modes of transportation. It explains the interpretability of the model for other types of channels, which is instructive for the selection of regional transport routes, industrial layout and selection.