A system of normative indicators as a tool for justifying planning decisions for residential areas at the land plot level

The relevance of this research stems from the need to revise the content of urban planning standards for cities in Western Siberia. The focus of the study was the residential development plot as an object of urban planning regulation. The authors considered 60 residential plots in Tyumen and Omsk (30 in each city) developed between 2009 and 2019. The study aimed to identify the mutual influence of land plot size, open space morphology, and planning characteristics on the type of land development. The application of factor and cluster analyses facilitated the identification of the underlying structure within the raw data, relevant to the context of design decision-making. Factor analysis was used to group the variables from the initial dataset into a two-factor model: the first factor comprised planning indicators, and the second – morphological characteristics. Cluster analysis enabled the classification of objects based both on the variables used in the factor analysis and on the urban planning indicators employed for evaluating the design solution.