Regardless of which pricing scheme is used (facility, roadway, or cordon) there are several different methods by which
the fee structure can be determined. The method chosen depends primarily on the purpose of the pricing scheme that
is implemented. First, although not as efficient, a pricing scheme could be designed to raise revenue. Funds obtained
through such automobile user fees can be used to finance new road construction and maintenance on existing highway
systems or to improve and expand public transportation. In order to be effective, however, the fees should be lower than
those aimed at curbing congestion and should remain constant. Because the objective is to raise as much revenue as
possible, vehicle use would be expected to remain relatively stable. The weakness of such an approach is that drivers are
not charged enough to truly feel the costs that their trips impose on society and thus results in marginal efficiency gains.