Keywords: MEPDG, AASHTO ware Pavement ME Design, traffic data, pavement design. Traffic characterization is a very important data for the pavement design regarding its performance analysis over time. Therefore, many studies have been conducted in order to represent this data on mathematical and computational models in a more reliable and realistic way for pavement management. Nowadays, the methods used for pavement design still are empirical and based on experiments conducted in the 1960s. In Brazil, flexible pavements are designed using the empirical method of the Brazilian National Department of Transport Infrastructure (Dnit). This method is based on the design curves developed by United States Army Corps of Engineers (Usace) during the Second World War and the results of the AASHTO road test (1958-1962). However, it is clear that the current traffic characteristics and type of vehicles differ significantly from those existing in the 1960s. Moreover, through the advance of technology, tires have been developed with greater load-carrying and higher inflation pressure than those existing on that decade. The tire inflation pressure used on the AASHTO Road test was between 483 and 552 kPa. #FLEXIBLE PAVEMENT DESIGN SOFTWARE SOFTWARE#.
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