Abstract
The OECD Road Transport Research Scientific Expert Group T8 "Framework for Consistent Traffic and Accident Statistical Data Bases" was confronted with the old problem of the inconsistency of data between countries, and the lack of some data altogether, especially traffic data for use as a measure of exposure to road accidents. Instead of carrying out yet another inventory of available data, the group decided that the best way to achieve harmonization and completeness was to create an international database.