SF City Planner, Billy Charleton, is interviewed on KQED Radio as he describes using SF Champ 3.0, an unusually sophisicated traffic modelling program which contains census data on 750,000 SF residents. In each scenario he runs, the simulation shows that traffic congestion is reduced with the introduction of congestion pricing. Critics of congestion pricing, however, point to London which charges about $16 to enter downtown during business hours. There, retail sales have declined since congestion pricing started.
Asha Weinstein Agrawal, of San Jose State's Dept. of Urban & Regional Planning, conducted a survey of 2700 California residents. 63 percent of respondents say that people with less fuel efficient vehicles should pay higher vehicle registration fees. This leads Agrawal to believe that people would be amenable to congestion pricing.