Nozomu Yoshizawa

A STUDY ON THE FACTORS OF SENSES OF PHYSICAL OPPRESSION AND OPENNESS ON RESIDENTIAL STREET FRONTS USING STRUCTURED EVALUATION DIAGRAMS

This study aims to ascertain the primary factors of the senses of physical oppression and openness and to clarify the relationship between those two senses. For that, the two senses were evaluated by inhabitants regarding the streets their homes front in the Sangenjaya, Setagawa-ku area of Tokyo. The results are as follows. First, the correlation between the two senses is -0.63 and there is general recognition that the two senses are contrary to each other. The positive correlation between the sense of physical oppression and dissatisfaction itself can be seen and the both increase or decrease together. However, the sense of openness and dissatisfaction itself do not guarantee the same correlation. Second, the sense of physical oppression is mainly influenced by forms of street and architecture and is especially dependent on the form of architecture. The influence on the sense of openness is divided evenly into three elements: the street, traffic, and architecture. Third, natural objects, scenery, and environmental elements also increase the sense of openness while electronic poles and wires along with advertising and sign boards influence the increasing sense of physical oppression. Finally, the two senses are directly influenced from the elements on the entire streetscape but the sense of physical oppression is affected relatively more from the relationships between the elements than is the sense of openness.