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The Average Speed of the Average Car
In the 1970s, Ivan Illich estimated the average speed of an American to be 3.7 miles per hour, about the speed of a brisk walk. This is an update estimate for the early 2010s.

In the 1970s, Ivan Illich estimated the average speed of an American to be 3.7 miles per hour, about the speed of a brisk walk. This is an update estimate for the early 2010s.
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