I figured this would happen, someone would mention congestion pricing and hold it up as a marvelous example of why Jarvis is a good idea. Look at the nominal goal of the Jarvis narrowing. Apparently it is to "increase friction" via increased congestion, so say its promoters. The congestion charge has the explicit goal of reducing congestion. So, in goals, the two are totally conflicting. The congestion pricing works, at reducing congestion, because a.)The costs are easily tangible, you pay x dollars every time you head to the city. In order to account for congestion, each driver would have to calculate the opportunity cost of the lost 2 minutes and compare that to the OC of alternatives. Unless traffic was static, most would simply continue to drive. b.)Revenues of the pricing go directly to providing alternatives. London has become saturated with buses because of it.
Let me phrase it another way, what sounds like a more practical way to reduce congestion, putting a clearly visible price on it while simultaneously providing alternatives or increasing congestion? If 'increasing congestion is the best way to reduce congestion' is your answer, I'm not sure how to respond.