International comparisons of road safety data and their analysis are becoming more and more important. Different databases offer not only an overall picture about road traffic situation in individual countries, but much more they can bring useful lessons on the progress achieved in the specific area during the last period of various groups of users, on different types of roads, etc. Many information sources, statistics and databases are available - IRTAD (OECD/ECMT), CARE (EU), IRF, UN ECE. The paper will compare their contents and their operating procedures, accessibility and their strengths and weaknesses. On the example case of the Czech Republic it will show usefulness of IRTAD on country level. It will show IRTAD as the most reliable database especially for the countries with big changes in the road safety policy. The paper will conclude with the picture of further possible development of the IRTAD.