基于手机信令数据的山东半岛城市群空间联系分析

Spatial connection analysis of Shandong Peninsula urban agglomeration based on mobile phone signaling data

手机信令数据可以反映城市间的人员流动,通过相应的算法和约束条件可以通过人流活动轨迹和活动强度反映城市间的空间联系。以山东半岛城市群作为研究对象,选取城市群间的联系量和联系方向作为空间联系衡量的指标,分析山东半岛城市群的空间联系。结果表明:联系量表征的山东半岛城市群内城市间联系以邻近联系为主,跨越行政区的联系略显不够;吸引量表征的城市吸引力中,吸引力强、等级结构高的区县多为人流活动频繁的市辖区;对外联系流向表征的优势流中,济南市、青岛市、潍坊市、临沂市在优势流数量上具有绝对优势,处于城市群等级结构中的第一级城市,泰安、烟台、菏泽、聊城处于城市群等级结构中的第二级城市。

Mobile phone signaling data can reflect the mobility between cities and through the corresponding algorithms and constraints,the spatial relationship between cities can be reflected by human flow track and activity intensity.With the urban agglomeration in Shandong Peninsula as the research object,this paper selects connection quantity and connection direction as the indexes of spatial connection,and analyzes the spatial connection of the urban agglomeration in Shandong Peninsula.The results indicate that cities connection in this area is mainly proximity relation and the connection across administrative districts is not significant;the districts with strong attraction and high hierarchical structure are mostly municipal districts with frequent flow of people;Jinan,Qingdao,Weifang and Linyi are the first tier cities in the hierarchy of urban agglomeration in that they are dominant in terms of external connection flow;Tai′an,Yantai,Heze,and Liaocheng are the second tier cities in the hierarchy.