Developing a European transport policy to deal with trans-national problems such as environmental damage and congestion on regional links requires statistical tools to monitor patterns of mobility. However, the basic data are often missing and national data sets are often inconsistent. In particular, there is a lack of data on international flows, Trans-European Networks, new logistic services, transport chains and intermodality. Moreover, software tools are needed to combine and analyse the available data in a decision-useful form. Therefore, the European Commission is promoting the development of a European Transport policy Information System (ETIS). ETIS is intended to support decision-makers in both public and private sectors in understanding changes in mobility, logistic patterns and the effects of policy measures.