It was written to provide inspiration and good points of departure that may lead to improvements of the Korean road safety data system, the analysis of data and its use in policymaking and research. One hundred years later, this is still true. Another phrase very relevant for this research is: “You can't manage what you can't measure ”. It is advisable to consider these different sources as part of one road safety whole and clearly agree on who collects which data, with what frequency, and how data is managed and made available to users.