基于多源数据的城市空间活力时空特征分析——以南京市河西、仙林新城为例

Spatial and Temporal Characteristics of Urban Spatial Vitality Based on Multi-source Data——Taking Hexi and Xianlin New Town in Nanjing City as Examples

采用微信宜出行数据、传统规划数据,探索南京市河西和仙林新城的空间活力时空特征。结果发现:(1)在空间层面,河西呈"东高西低、北高南低"的集聚特征,仙林活力分布与高校区位高度匹配。(2)在时间层面,河西呈"降—升—降—升—降"的波动特征,仙林呈"降—升—平缓"的波动特征。(3)工作日的河西活力集中在居住区,休息日集中在商业区;仙林在工作日和休息日无差异,均分布在高校区及其周边的商业区。

Using Wechat travel data and traditional planning data,this paper explored the spatial and temporal characteristics of Hexi and Xianlin in Nanjing.The results showed that:(1)The distribution of Hexi vitality was characteristized by"high in the east and low in the west,high in the north and low in the south",and the distribution of Xianlin vitality was highly matched with the location of universities.(2)Hexi pre sents the temporal characteristics of"down-up-down-up-down",while Xianlin presented the fluctuation characteristics of"down-up-flat".(3)The spatial vitality of Hexi mainly concentrated in residential areas on weekdays,and was mainly concentrated in commercial areas on rest days.The spatial vitality of Xianlin mainly distributes in university areas and their surrounding commercial areas on both weekdays and rest days.