Some might be interested in this paper: A temporal geography of encountershttp://journals.openedition.org/cybergeo/28985?lang=en Drawing on recent explorations of social media locational data, we analyse the urban trajectories of people with different income levels in Rio de Janeiro in order to infer the space-time structure of potential encounters, and assess social diversity on the streets. best, Vinicius M. NettoProfessor Associado | Associate Professor Escola de Arquitetura e Urbanismo | School of Architecture and Urbanism | EAU Universidade Federal Fluminense | UFF