Economic and social development of each locality and finally, of human communities that live here, depends increasingly on the ways of their internal organizing but also on becoming closer with social partners in the area(s) concerned. It is increasingly important that each locality (territorial administrative unit, TAU) solve multiple problems of ensuring development conditions through various strategies and policies of cooperation and association. These may represent a real support and vector for sustainable development of several TAU, capitalizing new forms of territorial development. Our paper aims to present some strategies that can capitalize the benefits of a territorial structure as the Metropolitan Area. We mention those of urban-rural partnership, the associative kind and those of cooperation between localities belonging to the same territorial structures/regions. These strategies have been customized by a study on setting up a possible Galati Metropolitan Area. Based on the analysis performed at the territorial scale proposals were made concerning its territorial delimitation, in two variants, the ring 1 and ring 2. A map of the county Galati was made, marking variants proposed to configure the Metropolitan Area.