基于GIS和大数据的城镇体系定量化研究——以山东省昌邑市为例

Quantitative Analysis on Urban System Based on GIS and Big Data:A Case Study of Changyi, Shandong

城镇体系规划是城市规划的重要一环,关系到区域资源的配置和区域发展。近年来,大数据的应用正受到更多的重视,而目前基于大数据支撑的城镇体系研究尚不多见。以山东省昌邑市为例,利用ArcG IS和开放大数据,构建城镇体系定量化研究的框架,以支撑城镇体系规划。首先,根据相关数据的可量化和可获取情况,建立用于定量化评价小城镇中心性强度的指标体系;其次,引入网络实时道路通行时间,结合中心性强度改进传统的场强模型;最后,综合考虑影响范围和影响强度,展现山东省昌邑市"一带、,两轴"的空间结构,据此提出"城区中心—影响力较强城镇—影响力一般城镇"的三级结构,为城镇体系规划提供定量化分析支撑。

Planning of urban system, which is related to resource allocation and regional economic development, is an important part of urban planning. In recent years, the application of big data is receiving more and more attentions. However, the research on urban system based on big data support is still rare. This paper tries to construct a framework of quantitative analysis on urban system based on GIS and big data to support planning of urban system with a case of Changyi, Shandong. Firstly, according to whether the data is able to be measured and obtained, this paper constructs a framework of indexes to evaluate the centrality strength of small cities. Secondly, this paper adjusts and improves the spatial interactions with centrality strength and the real driving time downloaded from the internet. Finally, according to the range and strength infuenced by the towns, this paper proposes the urban system of Changyi, Shandong. Furthermore, the results are useful for the future studies and the urban planning of this area.