[pp.63-72]

An Analysis of Material Stocks for the Construction of Transport Infrastructure in Japan: Moving towards a Sustainable S

Cherry Myo LWIN, Hiroki TANIKAWA and Seiji HASHIMOTO （Nagoya University / Ritsumeikan University）

Abstract:
Material stocks in the Japanese economy are growing, notably those from the construction sector. This study analyses the material accumulation of roadways, road bridges, road tunnels, and railways at the prefecture level (1970- 2005) finding correlations with the four measures: population density (social indicator), per-capita GPDP (economic indicator), passenger and goods flows (service indicator) and inhabitable land areas (geographical indicator). Four conclusions are drawn. First, per capital material stocks became high also in low populated prefectures such as Akita, Iwate, etc. regardless of their low population densities and levels of economic development. Second, GPDP of some industries such as real estate and manufacturing sectors displayed strong correlations with the increased material stock. Third, there were large fluctuations in passenger and goods flows per stock in high-populated prefectures such as Tokyo, Osaka, etc., where also per capital stock increased but not much compared with other prefectures. Finally, stock per inhabitable land rose, while the prefectural total stock increased. The detailed analyses of these correlations could help for more understanding on stocking and utilization construction materials associated with socio economic conditions moving towards sustainable stock-type society.

Key Word:
material stock, transport infrastructure, industrial structure change, passenger and goods flows, inhabitable land, sustainable stock-type society

PDFダウンロード（会員限定）