Development of Walkability Indicator for Smart Shrinking:

Abstract

Urban shrinkage is a problem that is faced by some metropolitan areas globally in urban cities faced with depopulation. Therefore, these cities require “smart shrinking”, which consists of design methods intended to satisfy residents’living needs, even though the population is declining. The purpose of this paper is to develop a walkability indicator for visualizing smart shrinking. The methods include statistical analysis by GIS analysis and questionnaire in the Northern Osaka Metropolitan Area where there are many small-sprawl areas. The following four results were identified. First, the population decline in sprawl areas indicates the regional characteristics of each city. Second, this paper develops a walkability indicator composed of household density, convenience of facilities, road connectivity, and traffic safety. Third, Wi(i), which is walkability in each residential area, in sprawl areas, and in public housing areas, is important for future population change. Finally, the validity and effectiveness of the indicator is clarified by questionnaires regarding regional evaluation. In conclusion, the walkability indicator is able to visualize smart shrinking in sprawl areas.

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