Head injury will become an increasingly important health issue in the coming years.

The global epidemic of road traffic injuries is only beginning.

- This graph shows what happened in high income countries as the amount of traffic increased over time

- The red line shows the growth in road traffic from 1945 to 1985

- The black line shows the total road crash fatalities as a result of this

The relationship between the level of motorization and the number of road deaths in the high income countries provides an indication of future trends in road traffic deaths in the developing countries.