ROAD SAFETY

Speed changes the outcome.

Explore why lower speeds protect pedestrians and school communities.

30 km/h

1.0× relative impact energy

Compared with the same vehicle at 30 km/h. Kinetic energy increases with the square of speed. This is a physics illustration, not a prediction of an individual pedestrian’s survival.

Use 30 km/h or lower limits where vehicles mix with pedestrians and school children, with safe crossings and traffic calming. Follow posted national highway limits and slow further in poor visibility.

WHO: Managing speed