Recently, the population is decreasing in Japan. If urban area keeps expanding to the suburbs, various problems will be caused. For example, daily lives without cars become difficult, efficient development and maintenance of urban infrastructure will be also difficult, and the amount of energy consumption will be bigger. To solve them, compact urban structure is requested corresponding to the population decrease especially in provincial small town. However, it is not clear where dense urban area should be located and how much population should be located there. Consequently, this study aims at examining the preferable future urban structure from the viewpoint of energy consumption in Fuchu city, Hiroshima that is a provincial small town. Concretely, authors make 55 urban structure scenarios in 2035, and calculate the energy consumption for each scenario. As a result, it can be said that compact urban structure will lead to reducing energy consumption, and the effects are different from each other widely depending on scenarios.
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