Responsive tolling on roads makes a lot of sense. Roads carry more people at 50 mph than they do at 30mph. So if you use the price of the road to keep the road moving, you can make a more effective road, rather than letting it be overwhelmed and less useful.
I thought an article just a few days ago proved that money-based restrictions or incentives only work if people are not left with any other choice and generally makes everyone sad and angry. Perhaps it's a culture or locale issue; we don't really have toll roads here.
