The current status of ITS deployment around Europe is characterized by lack of Standards for ITS implementation at EU level, limited cooperation among the various related IT Stakeholders and more importantly lack of wide awareness of the results and outcomes deriving from numerous and significant investments in ITS throughout Europe. This knowledge fragmentation can be reduced through the development of the ITS Observatory, a flexible and user-friendly, open source of knowledge for ITS Deployment in EU and abroad. The current study presents the user needs and requirements for this unique ITS Observatory.