METHODS FOR MANAGING VISUAL QUALITIES OF LIGHTING IN PUBLIC SPACES OF THE CITY

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Raising of problem. Lighting is an important aspect of creating an attractive and comfortable urban environment. It can enhance the aesthetics of night-time cities by highlighting architectural details, highlighting significant urban locations and creating areas for public interaction. Properly designed lighting affects the health and comfort of citizens. It can improve mood, sleep, reduce fatigue and improve visual function. With the development of new lighting technologies and digital innovations, it becomes possible to introduce modern approaches to urban lighting planning into architectural practice.At the present stage of innovative development of street lighting technologies, the Urban Lighting Masterplan (ULMP) is playing an increasingly important role. These are strategies that regulate and fix the basic requirements for organizing sustainable artificial lighting in urban spaces. Purpose. This study is devoted to the principles of managing the visual qualities of the illuminated architectural environment. For the first time, a framework for the formation of criteria for assessing the visual qualities of the architectural environment is proposed. GIS is considered as a promising tool for managing the visual qualities of lighting, the levels of which are formed in accordance with the functions of visual comfort. The following nine basic functions of visual comfort are defined, each of which is the basis for creating GIS layers: 1. Adaptive; 2. Axiological; 3. Compensatory; 4. Integrating; 5. Aesthetic; 6. Cultural; 7. Social memory function; 8. Epistemological; 9. Ethical. Each subsequent layer adds its own light sources. For each of these nine functions, two lighting properties are proposed: color and light. Each property is described by four characteristics: color − saturation, lightness, color temperature, color tone; light (luminous flux) – brightness, illumination, contrast. Conclusion. An idea of the approaches and structure of the assessment of the visual qualities of illuminated public spaces has been formed. It is hypothesized that the optimal approach to the analysis of existing situations in the lighting of open public spaces and the formation of sets of requirements for improving their visual qualities is the use of GIS. A hypothesis was formed about the structure of the criteria for assessing the visual qualities of lighting, based on the psychophysiological, emotional-aesthetic, and pictorial-artistic levels of perception of the architectural environment.Thus, the approach described in the article allows us to formulate criteria for assessing the visual comfort of artificial lighting of public spaces.