Comment 104267

By KevinLove (registered) | Posted September 03, 2014 at 21:46:56

Quite informative are the graphs on page 24 of this UK government publication.

At 20 MPH (=32 km/hr), the risk of death to a person hit by a car driver is very low. This risk of death hits 50% around 45 MPH (72 km/hr) and approaches 100% at 60 MPH (100 km/hr).

In terms of human evolution, think of this as the "George of the Jungle" effect. In a sprint, a human being can run about 30 km/hr max. So the human body evolved to withstand running into something at that speed. Watch out for that tree!

Comment edited by KevinLove on 2014-09-03 21:49:42

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