地铁在城市旅游交通中的作用及其优化——以南京主城区为例
纪小美, 熊怡清, 张子昂

The role of subway in urban tourism traffic and its optimization: The case of the main urban districts of Nanjing City
Xiaomei JI, Yiqing XIONG, Ziang ZHANG
图1 地铁站点途经次数
Figure 1 The passing number of subway stations