层级性公共服务设施空间可达性研究——以北京市综合性医疗设施为例
钟少颖, 杨鑫, 陈锐

The accessibility measurement of hierarchy public service facilities based on multi-mode network dataset and the two-step 2SFCA:A case study of Beijing's medical facilities
Shaoying ZHONG, Xin YANG, Rui CHEN
图6 北京市城六区公路和地铁网络图
Fig. 6 The map of roads and subway of six core districts in Beijing