
All of the suggestions are good - higher road speeds, increased licencing testing, better roads. Problem is you can not make such changes overnight. It has to take a generation to do so and we don't have the forsight on the intestinal fortitude.
Now to driver attitudes - We all seem to believe that the problem is with other road users and not us speeding as we are all capable of handling a vehicle at greater speeds. Have you ever thought that perhaps other road users are not capable of judging your higher speed and think that you are traveling at the speed limit. There was some research done (I will find it) that showed that the majority of road users believe they are far better then they actually are and drive at a higher risk level. To take it a step further motor bike riders are in particular the people who take higher risks just by riding a bike so we fall into this category.
For the record I do occasionally exceed the speed limit and I also believe I am an above average road user

Nick