Brazil is a Federal South American Republic, in which there are 27 federated states divided into 5 regions and Brasília, the federal capital. In 30 years, the country has almost doubled its population. From 93 millions people in 1970 to 182 millions people in 2004. Nowadays, more than 80% of Brazilian population lives in the urban centers, from which 30% are concentrated on the Metropolitan Regions, which there are in the country. That gathering deals with the rising necessity to promote the daily urban mobility, through the use of a large variety of means of transportation. Although this situation has aggravated through the last years, because it was verified a decrease of number of passengers taking the public transportation by bus, mainly due to the others reasons, the big competition done by the non-regulated transportation, done by people which take Short-Sized Vehicles SSV.