Furthermore , developing nations tend to have a higher proportion of fatalities per number of vehicles for various reasons , including lower safety standards for vehicles .
In recent decades , while traffic fatalities have declined in industrialized nations , they have been on the rise in developing ones .
Developing nations tend to have a higher proportion of fatalities per number of vehicles for various reasons , including lower safety standards for vehicles .
In recent decades , while traffic fatalities have declined in industrialized nations , they have been on the rise in developing ones .