The objective of this study is to verify the relationship between the layout of group of storehouses and the winter microclimate of the settlement in Tsushima Island, Japan. Climatic conditions were observed in Waniura settlement in winter of 2019. In the northern part of Waniura settlement, there is the largest group of storehouses in Tsushima Island, consisting of more than 150 storehouses. When adaptation to the windy environment was considered as a priority for the location of the group of storehouses, the southern part of the settlement and the east-west valley were found to be the most suitable sites, as they are upwind in winter and the wind velocity is not so strong. The reason why the group of storehouses was formed in the northern part of the settlement despite the area of strong wind was not only because it was upwind, but also because it was located halfway between the residential area and the cultivated land. It was found that the wind reducing effect appeared in the center of the group of storehouses and in the drying place called “Be-Doko” located on the south of the group of storehouses.

For the purpose of clarifying the actual use of reflective materials to prevent traffic accidents, we conducted a survey of elementary, junior high and high school students in Kumamoto Prefecture and received 458 responses. The older the student, the later they tend to return home. Survey respondents reported near-miss accidents in all types of weather conditions, and many of these near-misses were experienced not only during twilight hours but also during daylight hours. These results suggest the need for measures to increase the visibility of people in all weather conditions and at all times of the day. Awareness of reflective materials among respondents was about 80%, but only 45-54% of them actually owned such items. In addition, while about 80% of elementary, junior high and high school students feel that reflective materials are effective in preventing traffic accidents, 61-64% of junior high and high school students and 40% of elementary school students do not wear reflective materials during twilight hours. Survey results also suggest that reflective materials are not being used effectively since some respondents have been involved in near-misses when walking even while owning such materials.