It's been years since I've crossed on 520, so I don't have any real say in this, but just for entertainment purposes......
I'm not at all sure that I agree with the whole toll aspect of things....the tolls are on STATE hiways......STATE. That alone says to me that the STATE benifits, not solely those who directly use it.....such as commercial traffic that moves services and commodities to many places. So in that spirit of equity, I would like to see some sort of split responsibility. Perhaps 25% of the cost born by the STATE through a specific tax, and the remainder born by direct users.

As far as the chart goes......pthhhhh. All you have to be aware of is where the income stream comes from.....try industry for a start, and overall assessed value per county. I'm thinking a toll at the border of all the Red counties might be in order.....residents exempt, of course.