no129-132

[129] Population within reach of core areas by hierarchical levels in a broad area

- Toward a city structure that considers fairness

○Taichi Murooka¹, Kanta Kumeyama¹, Mamoru Taniguchi² (1. University of Tsukuba Systems amd Information Engineering, 2. University of Tsukuba)

Keywords:Regional disparities, core-areas, hierarchy, reachable area, Wide-area planning

There is concern that areas with access levels below the minimum required for living services may arise due to the lack of core-areas set up in the appropriate locations. On the other hand, an excessive number of core-areas that prioritize fairness can result in a diffusion plan, which requires core-area selection based on objective criteria from wide view. This study introduced a method for extracting core-areas on wide scale and examined the population by core-areas hierarchy. As a result, it was revealed that (1) it is necessary to use automobiles to secure 70% of the coverage population with only upper core-areas such as stations (2) setting lower core-areas such as community facilities can increase the population that can reach core-areas by walking or cycling.