The mobility referred to the University is a significant part of the urban mobility in Trieste. Therefore a specific project was performed to analyze the main problems, to understand the preference structure of the users and to define some possible solutions to improve the accessibility of the University and to reduce urban congestion, mainly through sustainable transport modes. The survey pointed out features and preferences of different user groups, which were explicitly considered in the AHP assessment framework, and allowed to define criteria and to fix the weights. Also the presence of more than one decision maker was explicitly included in the hierarchy, to model the different impact of different user groups on the decision makers. As a result, the ranking of the alternatives has been defined, which has been taken into account by the decision makers for their planning choices. From a methodological point of view, the specific structure of the AHP hierarchy allowed to model the decisional problem even if a more complex ANP approach would be perhaps more suitable to consider interactions between nodes in this group decision problem.
