Abstract
When in a country mass motorization is accomplished, teens usually start to drive as soon as the legal system allows them to do so. What all countries with mass motorization have in common is an overrepresentation of teen drivers in car crashes. Countries differ widely in the moment mass motorization was realized. They also differ in culture, road infrastructure, traffic composition, licensing system, and overall traffic safety level. These differences between countries have an effect on coutermeasures and on research programs regarding the young novice driver problem. An overview of differences in countermeasures and research programs of developed countries is needed. (Author/publisher)