The object of the present paper is to study the relation of the image of the space to the constituent elements that characterize the Japanese traditional streets such as roofs, windows, walls, and pavements, by means of the method of multivariate analysis. The first, the constituent elements, which influence the image of the space for the Japanese traditional streets, were collected and examined as a result of the questionnaire in real space. The relation between the variety of the constituent elements and the image was studied by means of the method of correlative analysis and cluster analysis. The second, the change of the image was studied in the psychological experiment by means of modifying the constituent elements on the CRT images operated by computers. The influence of constituent elements on the image was studied by means of the method of quantification I, and analyzed qualitatively. In consequence: 1) The constituent elements that influence on the image were classified, as shown in Table 2. The image of streets that consist of various constituent elements could be modelled and delineated. 2) The image of the space : gorgeousness, hardness, regularity can be represented as a function of the constituent elements. That can be available as indices for the expectation of the image of the real space from the CRT images.
