The importance of this research lies in establishing an integrated system to support decision making of bituminous road surface maintenance in Lattakia within the environment of Geographic Information Systems, which leads to improve the level of performance and reach better conditions of road safety and comfort. In a former research, the bituminous surface condition data was conducted and filled in the Asphalt Institute Form by which we obtained an overall condition rating that led in turn to the type of maintenance of each studied segment and link them to the digitized maps where every segment appeared in a color reflecting its condition according to the purpose of the map. In this research we depended on the " Project Priority Methodology " to view and query different alternatives to support decision making of which road segments should be maintained first by using five categories each one gives us a weighing value, then we collected the total weighed value for the five categories together, and link that to digitized maps that guaranteed fast and direct reach to various solutions to choose the best, insuring as a result that the traditional way in maintenance which begins with the worst segment is not always the best, and that its time to move towards new pavement maintenance management systems.