Globalization and liberal policies that have affected city functioning have also affected the behavior of urban transports. Urban expansion and new economic insertion processes, and their expression in cities, have been fully accompanied by a transport system that has assumed a functional role to this development. New urban transports organization and functioning trends reveal precisely an institutional politic and operative transformation that serves as a functional support to urban demands and urban developments trends. Processes like systems disaggregation, the generation of supply special segments oriented to population solvent demands, as well as the generation of conditions for supporting urban expansion, are all new features that transport system has been able to assume, according to the new general trends of Latin American economies and cities.