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taxing a particular road will only divert traffic onto other nearby roads that are probably less able to handle high traffic volumes. I wouldn't want hundreds of cars driving down my residential street just because the nearby arterial street has switched over to congestion-pricing mode.

congestion taxes need to be regional, not per-road.

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The best approach is to have congestion pricing applied to all roads, but with each road (or road segment) having its own price. After all, 'hundreds of cars driving down a residential street' is a case of demand exceeding supply, so we can fix it by increasing the cost and therefore decreasing the demand.

In a society with perfect information [0], I agree.

However, people don't have perfect information so how would you coordinate millions of drivers about their different driving paths and their various costs? Not everyone has smartphones running GPS all the time.

[0]: https://en.wikipedia.org/wiki/Perfect_information

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