基于多源大数据同构的城市中心体系“动态非均衡”结构及演变机理研究

随着我国经济全球化和城市化进程的加快，城市中心体系空间结构的复杂化成为当下中国城市空间发展的重要特征。在中心体系从低级阶段向高级阶段发展的过程中，由于公共服务设施的建设速度不及日益增长的服务需求和服务人群规模，中心区服务腹地日益扩大，活动空间距离延长，活动强度时间波动剧烈，中心区与其腹地的结构关系呈现动态性与非均衡性，使中心体系从早期的“静态均衡”结构转变为一种“动态非均衡”结构，造成了中心体系职住失衡、交通拥堵、生产效率降低等问题。针对这些特征及现象，本项目在对中心体系发展态势深入解析的基础上，利用多源大数据面向人群时空活动的强大采集能力，综合运用中心体系空间界定、手机数据空间化运算、时空行为棱柱、人群构象计算等研究方法，针对中心体系“动态非均衡”结构特征规律进行定量剖析，进而构建城市中心体系时空动态结构模型，并总结中心体系空间结构的演变机理，形成中国城市中心体系空间结构优化的具体策略。

With the acceleration of China's economic globalization and urbanization, the complexity of the spatial structure of urban centers has become an important feature of China's urban space development. In the process of developing the central system from the low stage to the advanced stage, the construction of the public service facilities in the central area is less than that of the city's growing service demand and the service population. The hinterland of the central area is expanding day by day, the relationship between the central area and its hinterland is dynamic and non-equilibrium. The central system changes from the early "static equilibrium" structure to a "dynamic non-equilibrium" structure, which results in the imbalance of the central system, Traffic congestion, reduced production efficiency and other issues. In view of these characteristics and phenomena, this project is based on the deep analysis of the development trend of China's central system, the use of multi-source data for the crowd time and space activities of the strong collection capacity, the comprehensive use of the central system space, mobile phone signaling data spatial computing, The spatial and temporal behavior of the population, the conformation calculation of the population, and the quantitative analysis of the characteristics of the dynamic non-equilibrium structure of the central system. And then constructs the spatial and temporal dynamic structure model of the urban center system, and summarizes the evolution mechanism of the spatial structure of the central system, and forms the concrete strategy of the spatial structure optimization of the urban center system in China.