I'm not sure I understand your point here. If the goal is less traffic then steps that lead to less traffic are effective.
Presumably to get less traffic you need to make the choice (to drive a car into the city) less attractive. Making it cost more would seem to do that.
Of course $15 is not enough, because while that will act on the "unattractive" side, there will then be less traffic, which will the increase the "attractive" side. The toll will need to increase to find the balance where it dwarfs the no-traffic convenience.
This is how I played out in London for example. Traffic has been reduced, but the connection charge is quite high.
Which is fine, those who want the convenience, and feel it offers good value for money can use it. And public transport (busses) is faster.
Yeah you don't understand the point. Effective means it works well at the problem. Would you say chopping off an arm that is broken is an effective way of fixing a broken arm? It definitely eliminates the problem. It doesn't solve the problem effectively.
To get less traffic you need to make sure the roads are good enough to hold the amount of cars that come, or are designed in such a way that those cars don't go far or don't stop (hard). Public transport is a great way at reducing cars which may reduce traffic.
Putting a price on travel does not effectively manage traffic. It just chops traffic off. If we put a price on a bunch of stuff and stopped people enjoying the benefits of things that way, we'd also see sharp declines in whatever we wanted.... never because it is effective though.
Claiming a chopped off arm is good healthcare is a great falsehood to run with since it's easy, but it's not right. Instead of pushing that propaganda, let's actually mend the broken arm.
Presumably to get less traffic you need to make the choice (to drive a car into the city) less attractive. Making it cost more would seem to do that.
Of course $15 is not enough, because while that will act on the "unattractive" side, there will then be less traffic, which will the increase the "attractive" side. The toll will need to increase to find the balance where it dwarfs the no-traffic convenience.
This is how I played out in London for example. Traffic has been reduced, but the connection charge is quite high.
Which is fine, those who want the convenience, and feel it offers good value for money can use it. And public transport (busses) is faster.