工業近接立地の集積効果に関する考察-墨田区の住工混合地域の例-

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The change in the industrial structure due to the recent development of service type industry in the metropolitan area is causing new conflicts in the land use of the inner urban area where small factories are located mixed with residences, shops and others. The conflicts disturb the location activity within each area and this may lead to the disintegration or termination of the external economies which were generated by the agglomeration of a similar type of industries.The reconstruction of an urban area brings out of relocation of buildings or the change of the land use. Thus this may also disturb the external economy.This paper present the result of an analysis on the effect generated by the agglomeration of factories in Sumida ward of Tokyo. The analysis is based on the survey data of seven types of industries conducted in 1984.The seven types of industries are as follows:1) iron and steel, 2) non-ferrous metals and products, 3) fabricated metal, 4) general machinery, 5) electric machinery, 6) transportation equipment, 7) precision instrument.The basic concept for the analysis of the data is the trading time distance that measures the distance between a factory and its contractor or orderer in terms of the required time for the trip by usual means of transportation. The value of the agglomeration effect is assumed to be represented by a function of the trading time distance for each transaction.The high density area of the agglomeration effect is seen to be concentrated in some particular part of Sumida ward. This shows that a proper planning of the renovation of Sumida ward could be realized without seriously damaging the present economic activity if only the high density area is left untouched. This observation suggests a possible use of the regional science approach to the problem of urban renovation.

著者

赤池光子
建設省建築研究所

工業近接立地の集積効果に関する考察-墨田区の住工混合地域の例-

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