Typology of urban agglomerations from the perspective of environmental effects: a quantitative approach using multivariate statistical techniques

Giani Ionel Grădinaru (giani.gradinaru@csie.ase.ro)
The Bucharest University of Economics Studies, Institute of National Economy – Romanian Academy

Bianca Conțolencu (biancacontolencu@gmail.com)
The Bucharest University of Economics Studies


In recent decades, urban agglomerations have experienced a substantial development from a demographic point of view and has resulted in the emergence of urban agglomerations. The purpose of this study is to identify some characteristics of urban agglomerations in terms of environmental effects, to find typologies of groups of urban agglomerations. To carry out quantitative research, the database created by Data-Driven EnviroLab was analyzed, consisting of several indicators relevant to the study. To achieve the first goal, principal component analysis was used to highlight the types of agglomerations. The results showed that public transport is an important source of pollution due to the high values for pollution indicators analyzed in the study, and the level of development, including the economic growth of urban areas is a topic to be discussed and brought to everyone’s attention. For the second goal, clustering was used to highlight similarities between the analyzed urban agglomerations.
Keywords: urban agglomeration, environmental effects, urban ecosystem, principal component analysis, cluster analysis

[Full Text]

Romanian Statistical Review 4/2022