Welche Verletzungen folgen, wenn Autos mit 30, 40 oder 50 km/h in Fußgänger rasen, zeigt dieser Artikel, publiziert auf der britischen Webseite Movement for a Liveable London:
"Simply put, if you get hit by a car driving at 30 mph you are much more likely to get seriously injured or killed than at 20 mph. If fact a pedestrian struck at 20 mph has a 97% chance of survival whilst at 30 mph the figure is 80%, falling to 50% at 35 mph.
In London, Transport for London (TfL) found 20 mph limits to have cut fatal and serious casualties by almost a half. Applying results from previous TfL research to the four hundred 20 mph zones London has today suggests an equivalent of 192 killed and seriously injured casualties are already being prevented each year."