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Research Subjects>Environmental Management> Crime Prevention


The Psychological Pressure of Houses over Adjacent Exterior Space

 <Journal of Architecture, Planning and Environmental Engineering, No. 529, Pp.133-139, Mar. 2000> 
Shigeo Kobayashi, Ryoichi Yanai, Ryuzo Ohno
This research examines what physical factors of a detached house are relevant to the strength of psychological pressure in the neighborhood. Four houses in a house-exhibition place were selected as experimental targets and sixteen subjects were asked to rate how much pressure was felt at given points at daytime and nighttime. The experimental result suggested that the psychological pressure value generally depended on the size of apparent house profile. Therefore, the model was formulated using the solid angle of the house facade and the sliding glass doors and main entrance. The weights for these elements varied with each subject. In the nighttime situation, the fitness of the model was improved when two more variables were added, namely the amount of the illumination received at the viewpoint and the amount of the illumination emitted by the house's windows.  

Measurement and Graphic Representation of the Residents' Mutual Visual Interactions for the Site Planning of Multi-family Housing

<Proceedings of 6th ICECGDG, P.568-571, August 1994> 
As a tool for site planning of multi-family housings considering residents' psychological responses, a personal computer program was developed to predict the amount of visual interaction at a given point in a proposed environment. A case study using this tool and questionnaire to the residents revealed that both senses of privacy and security were related with the measures of visual radiation from surrounding buildings and paths. The outdoor spaces in the housing site where residents feel unsafe could be predicted by lack of visual radiation from surrounding buildings.

Distribution of level of visual radiation of a housing site

Paper → EDRA1996 (text only)

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