Multi-dimensional Urban Network Percolation

International audienceNetwork percolation has recently been proposed as a method to characterize the hierarchical structure of an urban system from the bottom-up. This paper proposes to extend urban network per-colation in a multi-dimensional way, to take into account both urban form (spatial distribution of population) and urban functions (here as properties of transportation networks). The method is applied to the European urban system to reconstruct endogenous urban regions. The variable parametrization allows to consider patterns of optimization for two stylized contradictory sustainability indicators (economic performance and greenhouse gases emissions). This suggests a customizable spatial design of policies to develop sustainable territories