抄録
The purpose of this study was to analyze the landscape caused by vehicular traffic. By analyzing complexity using fractal analysis, measuring width and curve radius using maps, and investigating the number of accidents that have occurred in the past in the Hakone area of western Kanagawa Prefecture, where various mountain roads exist, the characteristics of safe roads with few accidents were examined. A total of three roads in Kanagawa Prefecture were targeted. In order to examine the fractal dimension quantitatively, the correlation between width and curve radius was determined for the fractal dimension of the target roads, and was found to be significant for all roads. Furthermore, all analyses confirmed that roads with a high number of accidents are characterized by a curve radius of R=100m or less and a fractal dimension of ±0.050 to 0.075 up or down in the curve section. In other words, improvement of curves corresponding to each of the indicators obtained in this study and improvement of the design of curves that are the values of the indicators from the road planning stage will contribute to the creation of safe and comfortable roads with fewer accidents in the future.
