2DECIDE addresses one of the most important ITS (Intelligent Transport Systems and Services) deployment related challenges on European level: Support and speed up consistent decision making related to ITS deployment for road and public transport (timely, cost-effective, interoperable, positive impact to urban and interurban mobility, positive cost/ benefit ration).A number of EU-documents have addressed the fact that slow and uncoordinated decision making for ITS deployment on urban, regional and national level is the most urgent problem to be solved in order to utilise the benefits ITS deployment can gain for a sustainable European transportation system.2DECIDE has formed a consortium representing an outstanding knowledge in the state of the art of ITS applications, services and technologies as well as ITS evaluation, administrational decision making, European ITS policy and tool development as well as in the area of existing ITS deployment deficits throughout Europe.As lack on easy and efficient access to a wide spread ITS knowledge as well as decision making for the deployment are recognised as the key factors for slow down investment on ITS on administration level, a single entry approach for a new ITS toolkit for better decision making has been selected as the most appropriate solution.Key ambition of 2DECIDE is to support both EU ITS policy goals as well as national ITS deployments strategies to gain the utmost benefit of ITS deployment and the related investments for a sustainable road and public transportation system.In this respect 2DECIDE takes also care for an post project operation and maintenance strategy within the form of EASYWAY (TEN-MAP: 2007- 2013).