As the name implies, a light electric vehicle (LEV) is a light, electrically powered vehicle to travel relatively short distances. Which vehicles are classified as LEVs varies among publications and countries. In the Netherlands, those LEVs that the minister of Infrastructure and Water Management has designated as special mopeds can be used on public roads.

Sustainable Road Safety implies that the traffic environment is designed to rule out serious crashes and to mitigate the severity of the crashes that do happen. The human dimension is the primary focus: man who is vulnerable, makes mistakes and does not abide by the rules.

Adolescence is the period between childhood and adulthood. Compared with older adolescents (18-24 years old), young adolescents (10-17 years old) exhibit more risky behaviour.  Because of their physical and mental development, young adolescents are attracted  to risky challenges, they are more susceptible to peer pressure, and they have less self-control and overview than older adolescents.

Public service advertising (PSA) on road safety does not seem very effective on its own. PSA campaigns mainly influence behaviour when they are combined with police enforcement and rewarding or other actions. This does not mean that PSA campaigns should not be undertaken.