I also will disagree somewhat with the article. I personally know plenty people who have cut back on driving trips (including myself). I can also see the difference out driving, especially during rush hour. While I'm sure the highway improvement funds are part of the reason, I've also seen a decent decrease in traffic in the last several years and especially the last few months. Drives that used to take 45 mins now take 30, I see massive (1/8-1/4 mile) gaps in traffic even during what would be considered rush hour, etc. As an article pointed out in another thread, ~47% of people would drastically alter their habits before gas reached $5/gal, which isn't quite the majority but definitely not a small portion of the population either. I think I'm seeing the effects as related to those statistics. It could also be because I live in CA, where the prices are somewhat higher than most other places.