Lighting Systems for Urban Underground Spaces and Their Impact on the Indicators of Lighting Comfort

The systems of natural lighting of underground urban spaces used in the world are considered. The importance of natural sunlight entering such spaces, which contributes to the creation of psychoemotional comfort of a person when he is in closed spaces, is emphasized. The advantage of using hollow tubular light guides for supplying natural light to underground spaces and providing a safe environment for people to stay in them is noted. It is emphasized that the use of hollow tubular light guides as natural lighting of underground spaces contributes to the improvement of a person’s peripheral vision, which makes his stay in the underground floors of buildings more comfortable. The implemented foreign projects of applying innovative technologies of natural light transmission based on the Solatube® system for natural lighting of underground spaces, as well as the first projects realized in the Russian Federation, are considered. The relevance of new lighting systems for underground spaces is noted – hybrid lighting complexes providing a comfortable light environment in underground spaces in combined and artificial lighting modes based on the basis of the use of new-generation of light guides with spectral characteristics close to the indicators of sunlight in such complexes. A hybrid lighting complex equipped with a system of automatic control of the light flux entering the underground space, depending on weather conditions and the time of year, which creates comfortable conditions for the visual organs in underground rooms, depending on the nature of the work performed in them, is considered.

I.A. SHMAROV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.A. KOZLOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
L.A. BRAZHNIKOVA, Engineer

Research Institute of Building Physics of the Russian Academy Architecture and Construction Sciences (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

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