IRTAD Database Coverage


The International Road Traffic and Accident Database (IRTAD) was established in 1988 through the OECD Road Transport Research Programme. The development and use of the database is carried out by the International Traffic Safety Data and Analysis Group. The database includes more than 500 data items, aggregated by country and year (from 1970) and shows up-to-date accident and relevant exposure data, including:

  • Injury accidents classified by road network;
  • Road deaths by road usage and age, by gender and age or by road network;
  • Car fatalities by driver/passengers and by age;
  • Hospitalised road users by road usage, age bands or road network;
  • Accident involvement by road user type (e.g. HGVs, LGVs) and associated victim data;
  • Risk indicators: fatalities, hospitalised or injury accidents related to population or kilometrage figures;
  • Monthly accident data (three key indicators);
  • Population figures by age bands;
  • Vehicle population by vehicle types;
  • Network length classified by road network;
  • Kilometrage classified by road network or vehicles;
  • Passenger kilometrage by transport mode;
  • seat belt wearing rates of car drivers by road network;
  • Area of state.

Country Coverage : Australia, Austria, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Israel, Italy, Japan, Korea, Luxembourg, Netherlands, New Zealand, Norway, Poland, Portugal, Slovenia, Spain, Sweden, Switzerland, United Kingdom, United States.

A key to the success of IRTAD is the process through which the information is collected, as it comes directly from relevant national data providers in member countries. The data are provided in a common format, based on definitions developed and agreed by the IRTAD Group. This requires a clear understanding of national definitions in order to enhance international comparability and, where needed, the use of an appropriate correction factor.

All IRTAD members have full access to the IRTAD Database on the OECD’s statistical portal which includes data and metadata for IRTAD countries and selected non-member countries. The user-friendly interface generates various output formats (HTML, EXCEL, CSV) for further analysis. Tables and charts offer a quick overview of time series and recent safety trends.

For a selection of IRTAD statistics see OECD.STAT.