Evaluation of Space Syntax Effect on Visual Quality and Daylight Indexes for the Interior Spaces of Residential Units in Isfahan City

Attention to the perceptual function of residential interiors depends to a large extent on their visual quality, which is a qualitative category, and therefore, its analysis has many complexities. This research seeks to answer the question of how and to what extent the arrangement and design of the interior elements in an architectural space affect the optimal distribution of daylight and visual comfort of space users. In fact, the purpose of this study was to discover the relationship between interior architectural elements and improve the visual quality of residential spaces in order to have the proper distribution of natural light. In this regard, 8 examples of residential spaces were designed, First, the visual quality of the sample of residential interiors was measured and quantitative data extracted through the Isovist tool in Depthmap Software based on the visibility connection indicators, the maximum line of sight radius, and the average depth of vision. Then, daylight indicators of brightness intensity and uniformity rate were also obtained in samples of Isfahan city in Relux software, and then, the relationship between visual quality indicators and daylight indicators was also investigated. Finally, Isovist indicators, which indicate the visual quality of species, were correlated with daylight variables confirming the validity of the proposed method in measuring the visual quality and amount of light received by residential spaces. The results of this study can be potentially effective in simultaneously measuring the visual quality and design of interior spaces of residential units and consequently, the quality of these units and the amount of light received in residential spaces.