Abstract
The aim of this work was to develop an energy sustainability index of mobility for Tunisian cities according to a set of relevant 58 indicators reflecting the sustainability dimensions (environmental, social and economic) with each dimension comprising sub-dimensions (subdivisions).The indicators are normalized, weighted by the principal component analysis method PCA/FA and aggregated to form a composite index for each sub-dimension and then for each dimension. Finally, the composite indices of the dimensions were aggregated to introduce an energy mobility index of sustainability for each city in Tunisia.Results reveal that the following cities are more sustainable: Sousse, Mahdia, Manouba, Gabes, Gafsa, Kebili, Monastir and Tunis, whereas cities such as Sfax, Le Kef, Kasserine, Beja, Siliana and Tataouine are weakly ranked in view of the sustainability energy index of mobility.This study allows highlighting the gaps and inequalities between cities in terms of their energy sustainability and required to have a clear idea about energy sustainability for decision makers and planners.