基于人员流动数据的地方吸引力指数的建议

As Japan is facing a declining population, there are fears that rural population centers may disappear in the future due to decreases in the resident populations through outmigration. On the other hand, there are still many regions in rural areas that are attractive to many people from outside the region or overseas, and it is necessary to re-evaluate regional values and sustainability from a different perspective. This study attempts to develop a novel indicator to quantify regional attractiveness as a destination in a way that is not dependent on the size of the local resident population. This index provides insight in developing populations related to regional revitalization that could be seen as more substantial than tourism and less so than true immigration. The regional attractiveness index proposed by this study quantifies the attractiveness of trip destinations as a force that draws people to the destination from further away, using big human flow data. The data was obtained from "Mobile Spatial Statistics" (NTT Docomo) through the RESAS API, from September 2015 to August 2016. In addition, a regional attractiveness index visualization system was developed as a web application to facilitate the public implementation of academic research. The possibility of using this system for agile policy formation and evaluation in regional revitalization will also be discussed.