Two metropolisation gradients in the European system of cities revealed by scaling laws

Détails

Ressource 1Télécharger: Pumain_Rozenblat_2018_EPB.pdf (2562.83 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_963D8F112645
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Two metropolisation gradients in the European system of cities revealed by scaling laws
Périodique
Environment and Planning B: Urban Analytics and City Science
Auteur(s)
Pumain D., Rozenblat C.
ISSN
2399-8083 (Print)
2399-8091 (Online)
Statut éditorial
Publié
Date de publication
17/07/2018
Pages
NA
Langue
anglais
Résumé
Urban systems share with other complex systems constraints on their dynamics that are revealed by pervasive structural features, among which scaling laws. Scaling laws are relationships between cities’ attributes and their size (here measured by their population). When the relationship is non proportional with exponents larger than 1, scaling laws indicate the relative concentration of some urban functions at the higher levels of urban hierarchies. Superlinear scaling thus reveals the metropolisation trends that are produced in the urban system, according to our evolutionary theory perspective, by the hierarchical diffusion of innovation waves. Considering the current urban changes linked with the globalisation processes as an ‘innovation’ that is likely to diffuse hierarchically in urban systems, we analyse the relationships between 25 indicators expressive of their position in globalisation processes and the size of European cities (356 largest functional urban areas of the 28 European Union member states plus Switzerland and Norway). When summarised in a single metropolisation factor, we expected to find a unique superlinear scaling relationship that would reveal the hierarchical structure of the unifying European system of cities. We instead identify two distinct metropolisation gradients for each of the Western and Eastern subsystem that we interpret according to the delayed globalisation process in the latter. This provides a demonstration of the usefulness of scaling laws for summarising stages in the process of hierarchical diffusion of innovation in systems of cities.
Mots-clé
European cities, urban systems, metropolisation, urban hierarchy, scaling laws
Open Access
Oui
Création de la notice
24/10/2018 11:27
Dernière modification de la notice
20/08/2019 15:58
Données d'usage