In Japan, the activity of getting out of the rain and staying under eaves of a building for a short time is called “AMA-YADORI.” The person in the activity of “AMA-YADORI” does something, for example chatting, opening an umbrella, straightening clothes and looking of the sky.As one of the space for “AMA-YADORI”, we took up the Semi-Outdoor space which is introduced in front of entrance and attached to outer wall at a small shop or a house placed in middle and small urban areas.

Although, many Semi-Outdoor spaces have been made, they were generally designed without concern about the preference and comfortableness for the activity of “AMA-YADORI.”. If the Semi-Outdoor spaces will be planned with the consideration, it would lead to improve image and comfortableness of not only the building but also the area. Then we aimed to clarify how Semi-Outdoor spaces were more preferred and which attributes were more important to design.

Therefore we carried out a psychological evaluation experiment. In this experiment, we showed 40 photos of real Semi-Outdoor spaces and asked university students to evaluate them one by one. “Preference” and three impressions to the spaces were chosen as evaluation items. Concretely, “Preference” means whether we want to choose the Semi-Outdoor space for “AMA-YADORI” when we are caught in the rain suddenly. And two situations were set in “Preference.” These were low and high density of entrance and exit. Three impression items were “Others’ impression”, “Easiness” for “AMA-YADORI” and “Disturbance.” “Others’ impression” represents the feeling of being eyed by others. “Disturbance” indicates the level of disturbing others who go in or out of a building by the activity of “AMA-YADORI.” In addition, the attributes of all of spaces were measured. The items of attributes were width, depth, height of a space, width of an entrance door and so on.

In the analyses, two types of the relation were examined.

The first was the relation among the evaluation items. According to the results of correlation and multiple regression analyses, the less conscious in “Others’ impression” and “Disturbance” and the easier in “Easiness”, the more preferred in “Preference.” Additionally, in the situation of low density of entrance and exit, “Others’ impression” was the most important factor. On the other hand, in the situation of high density of entrance and exit, “Disturbance” was the most important.

Secondly, we identified some attributes which were important to be preferred as a space for “AMA-YADORI” by relationships between the attributes and psychological evaluation. At first, we revealed that Semi-Outdoor space with large floor area was more preferred. However, we also found that some other attributes were also important factor. The ratio of depth to width and the layout of an entrance and a frontal road were related to “Others’ impression.” The latter and the ratio of entrance width to space width were related to “Disturbance.”