Urban ecology studies the city as an ecosystem consisting of humans and biophysical factors and how they interact in urban environments.Visual ecology also examines the environment around humans as an ecological factor and helps humans to feel pleasant and harmonize it with the physio logical mechanisms of vision. The aim of the present research is to identify the anatomical dimensions of facades and the impact of visual ecology criteria on improving the quality of residential facades in Tehran. The type of research method is descriptive and analytical and has a mixed approach. In the quantitative part of the QSORT classification method, information was obtained through field observations and questionnaire tools in the Likert spectrum, and the image quality diagram was drawn from the observer's point of view with SPSS software. The reliability of the questionnaire was confirmed through Cronbach's alpha coefficient with a rate of 0.785. In the qualitative analysis, the selected views were analyzed in the table based on the constituent elements and criteria of visual ecology and mechanisms of the visual system. The findings show that facades according to vision standards can form comfortable, uniform and aggressive visual environments, and as a result, based on Pie chart calculations, the frequency of visual quality of residential facades within the scope of the research is 65% comfortable, 15% uniform & 20% are aggressive. This article tries to provide solutions to improve the quality of citizens' visual vision through the analysis of desirable visual criteria in the facade of the building.
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