I think it has more to do with the fact that speed limits are unrealistically low than because people will always exceed the speed limit. - bitt

It's my opinion that people will always try to exceed whatever limits are set. It's human nature. - tfabris

I know that the reason I go anywhere from 5 - 15 mph over the peed limit is because 9 out of 10 times or more I can pass a cop going that much over without fear of being pulled over. The other times I hope that my reflexes will be enough to slow me down to just 5-10 over before the cop looks up. I think that if they raised the speed limits to, say, 90 and then ticketed anyone going 5 or more over the limit then that would prevent a lot of people from speeding. I think a lot of people speed because it's generally accepted that you can speed within reason. It is much more rare that I see someone going more than 15mph over the limit (i.e. see someone passing me) just for that reason.

- trs