TISAR (Traveller Information System for the Adriatic Region) will raise a discussion over the theme of public transport data sharing and multimodal traveller information at political and technical level. The aim of the project is the implementation of an ICT platform where public transport and journey planning data will be merged and made available in the languages of the IPA Countries. The TISAR platform will give information on available public transport solutions combined in a seamless multimodal journey planning. The project involves public authorities of different countries of the Adriatic region and 2 technology partners with strong experience in the ITS sector. The combination of scientific and technical expertise with the presence of institutional stakeholders will drive to a concrete discussion over one of the major issue at European level: seamless multimodal traveller information. Such a topic is very relevant in the Adriatic macro-region as it involves an area where different languages, cultures and historic background are concentrated in a rather small territory. Today, there is no possibility of having in a single portal all information to plan door-to-door journey within the area by using a combination of public/private transport. The reasons are not only technical but often due to lack of communication, agreements and rules both at local and international level on the sharing of data related to public transport. TISAR proposes the implementation of two parallel worktables, one institutional and one technical interacting with one another and with other worktables at European level, already define two overcome the obstacles related to concrete implementation of a system favouring mobility. Thanks to the presents of technological partners, TISAR proposes actual realization of a platform based to the European standards and adapted to local travel planning systems already detected during the definition phase of the project proposal. The institutional worktable will deal with the dissemination of local policy discussions at European level, showing real results of information and integration. The project is therefore perfectly aligned in Priority 3, Measure 3.2 Sustainable mobility systems since it aims at improving an efficient, safe and sustainable transportation system achieving integrated development of the Adriatic area and accessibility to bordering territories.