Abstract. - The configuration of the commercial pattern on the scale of the urban unity of Aix-Marseille, shows an imbalance between the suburban and the periphéric borders of the two agglomerations ; the latter are overequiped with hypermarkets and their commercial hypercenters appear relatively to stagnate. The dichotomy of localizations which derives from recent changes in the distribution systems, reflects a logic of profitability prospected by great commercial firms on the most attractive places for customers. It deletes the bearing of town planning policies. Such delocalization trends caracterizing commercial creations correspond to a general loosening movement of town activities ; they reopen the debate on the perception of centrality.
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