no1-8

[7] A Spatiotemporal Analysis of “Spongy urban area” focusing on Parking Lots and Street Patterns in Central Area of Local City

- A case study in Fukuyama City, Hiroshima Prefecture

○Shouma Shinno¹, Yoh Sasaki² (1. Waseda University, 2. Waseda University )

Keywords:Spongy urban area, Parking Lots, Space Syntax, Spatial Autocorrelation, Spatiotemporal

“Spongy urban area”, the random appearance of underutilized land such as parking lots, is a serious problem in local cities. Structural understanding of this phenomenon is necessary for countermeasures against it. In this study, we conducted a spatial autocorrelation analysis of parking lot locations and a street structure analysis based on Space Syntax theory in Fukuyama City, Japan, to clarify the relationship between them through time. As a result, we identified a chronological change in trends in parking lot accumulation and street accessibility. A detailed survey of the districts revealed that coin-operated parking lots tended to be located in higher accessible locations. The results enable understanding of the characteristics of the “Spongy urban area” phenomenon, which is regarded as random, in relation to the urban spatial structure.