What One Expert Thinks About Congestion Pricing in Portland

1. Most European cities have experienced 14-23 percent reductions in traffic after congestion pricing has been imposed with the purpose of reducing traffic, and have therefore generally been considered successes.
2. Initial public reaction to congestion pricing is typically negative. I mean you did used to drive on these roads for free!
3. Congestion pricing is an imperfect science, with each city requiring its own unique master plan and special considerations. Many cities consider congestion pricing and then don't go through with it because the economic impacts are too uncertain.

WWeek 2015