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.
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.
"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"
Some of this bullshit does cost lives.