The Spanish term “conurbano" refers to the outskirts of the city and is derived from the words "cono" (cone) and urbano (urban). With one side facing the "River Plate", the urban cone is shaped by the radial relations Buenos Aires stablishes with its suburbs. Roughly metaforically, the conurbano is the base of this socioeconomic cone. This image describes the radial organization from the downtown to the outskirts. Except for the north riverside area the rest of the peripheric cities is mostly low and middle class. Over 12 million people live in G.B.A. (almost one third of Argentina´s total population), of which only 3 million live in B.A. city and over 9 million en the conurbano. Most of its inhabitants work downtown and spend approximately 2 hours a day on public transport. This generates a daily circulation of almost 5 million people on 7 railway lines and over 300 bus lines. This important amount of public time daily consumed might be productively spent. The RallyConurbano – fervent defenders of urbanity- gets on the public transport circulating space mainly in the conurbano