The present research is developed through theoretical-concepcional reflections, aiming to examine apparently disparate concepts such as: socialspatial segregation and centralization/decentralization of commercial activities and services, generated in the same context, namely: in the process of capital accumulation that, by divers engendered strategies by agents and social classes with their economical and political interests, are spaciously divided by differentiations or better by inequalities. The aim of this study is not only to demonstrate the same origin of the above-mentioned processes, but to show the possibility to work with them in a dialectic form, promoting the understanding of spatial outlines as it is the example of the neighborhood Campo Grande in Rio de Janeiro, the part of the city which finds itself segregated and at the same time is figuring as one of the important Sub-centers of the carioca city. It examines the offer of public transport as one of the structural elements of urban space and its influence with the cited processes above and the urban planning as a representation of urban space used as instrument of status quo maintenance. It takes effect on the dynamic of social space production relating the mentioned processes, the public transport and the urban planning since the period, which correspond to the decade of 1990 until today. For this, it uses the theoretical and conceptual framework of social space production emphasizing the related space as a dialectical result of divers dimension, aspects, and interaction scales, resulting in a production deeply influenced by intentionally acting, conflicts, interests, contradictions and politics.