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http://en.wikipedia.org/wiki/Speed_limit#85th_percentile_rule http://en.wikipedia.org/wiki/Speed_limit#85th_percentile_rul... Most speed laws are based on some

http://en.wikipedia.org/wiki/Speed_limit#85th_percentile_rule http://en.wikipedia.org/wiki/Speed_limit#85th_percentile_rul... Most speed laws are based on some semblance of science. Granted there is often that extra percentage, but it doesn't kill anyone to slow down a little.

tc 18y ago
From the Wikipedia page: "a review of available speed studies demonstrates that the posted speed limit is almost always set well below the 85th-percentile speed by as much as 8 to 12 mph"
LPTS 18y ago
The length of the yellow at Traffic lights are at times calibrated to maximize fines rather then minimize deaths. Some of this bullshit does cost lives.