Method for determining the levels of detail of spatial objects as part of a three-dimensional information model of an urban area

The article proposes a method for determining the levels of detail for spatial objects, which is part of the three-dimensional information model of the urban area in order to reduce the computational load in operations related to visualization. The method adapts the concept of multi-level detailing to the list of spatial objects of the urban territory, where ranges of levels of detail are chosen for each of them, based on the needs of different management subjects when making decisions in emergency situations. Figs.: 4. Refs.: 14 titles. 
Keywords: information model of the urban area, modeling of spatial objects, levels of detail, LoD; CityGML.