In recent decades , while traffic fatalities have declined in industrialized nations , they have been on the rise in developing ones .
Such crashes represent a leading cause of death for adolescents and young adults , with the majority of deaths occurring in the developing world .
In recent decades , while traffic fatalities have declined in industrialized nations , adolescents have been on the rise in developing ones .
Such crashes represent a leading cause of death for adolescents and young adults , with the majority of deaths occurring in the developing world .