北京市出租车运量分布的时空格局及生成机制
施念邡, 杨星斗, 戴特奇

The spatiotemporal pattern of taxi ridership and its generation mechanism in Beijing
SHI Nianfang, YANG Xingdou, DAI Teqi
图3 北京市五环内工作日出租车上车点密度分布
Fig. 3 Spatial distribution of taxi pick-ups density on weekdays within the 5th Ring Road in Beijing