Gilliéron, PY2009-07-172009-07-172009-07-172007https://infoscience.epfl.ch/handle/20.500.14299/41430This presentation describes the main ITS (Intelligent Trasnportion Systems) services and their requirements in positioning. Different types of navigation systems are presented with a focus on satellite-based systems and the potential of Galileo with value added services.GalileoGNSSADASIntelligent Transportation Systemstext::conference output::conference presentation