Estimating Local Regression Models of Car Registration Rate by Municipalities of Japan

Research Project

Project/Area Number	20500890
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Geography
Research Institution	Utsunomiya University
Principal Investigator	OKUI Masatoshi Utsunomiya University, 教育学部, 教授 (50144548)
Project Period (FY)	2008 – 2010
Project Status	Completed (Fiscal Year 2010)
Budget Amount *help	¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2010: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000) Fiscal Year 2009: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000) Fiscal Year 2008: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Keywords	地理学 / モータリゼーション / モデル化 / 地理的加重回帰GWR / 乗用車保有 / 市区町村 / 空間プロセス / R言語 / クルマ社会 / 乗用車 / 地域差 / 縦断的 / 地理的加重回 / 乗用車保有率 / 地城差 / 縦断的考察
Research Abstract	Fitting the geographically weighted regression model to the data-sets of car registration rates by municipalities of Japan, it became clear that the important variables determining the level of the rates had not been uniform over the country but had shown the spatial variation, and also that such determinants of motorization had given rise to regional differentiation explicitly. Furthermore it was observed that the regional differentiation of determinants had remarkably changed its structure around 1990. On the basis of above, a simple diagram was obtained from multidimensional scaling to represent the motorization process of the country in geographical context.