“The results [of what TomTom learned from driver data culled from IQ Routes] were nothing short of stunning in our opinion, as we tended to believe (much like everyone else, we think) that most drivers sped on Interstates. The report found that while the average travel speed exceeded the speed limit in a few places (understandable!), overall, drivers tend to be mindful of the posted limits and obey then. The data only calculated speeds when traffic was free-flowing, which keeps the numbers from being skewed by wrecks and rush hour jams that would make us all seem like saints.”
via TomTom’s IQ Routes Prove Americans Aren’t Speed Demons – HotHardware.