So better brakes - can lead to more accidents!
This reminded me of some other articles I had read.
- Do Road Signs and Billboards Contribute to Vehicle Accidents? and Brainstorming wont bring you good ideas.
- Calorie Postings Don’t Change Habits - Study Finds
The lesson? Many things we do, we do for what seem like good intuitive reasons. We don't question things enough. Where we can, we need to back decisions up with evidence not intuition.
See what Wikipedia says on Counterintuition.