I think I know the basics. In the NYC implementation entering the toll area is $9 a pop during certain hours, and cheaper outside them. $9 maximum once a day. L

I think I know the basics. In the NYC implementation entering the toll area is $9 a pop during certain hours, and cheaper outside them. $9 maximum once a day. Low income residents get 50% off. In general the primary purpose of these pricings is to discourage people from using the priced thing, revenue from the fees is a bonus. The price naturally is more painful to pay the less you have money, so the less you have the more you are discouraged.