The present research only estimates MR&R marginal cost
prices at current levels of traffic loading for a pavement section
without actually implementing pricing. Anani (2008) extends this
by considering the entire roadway system in California and
actually implementing MR&R marginal cost pricing, which leads
to changes in the annual traffic loading on different types of roads,
resulting from truckers changing truck types and shippers shifting
between truck and rail. The MR&R marginal cost prices are
assumed to replace all the current taxes and fees. The highway
agency is assumed to constrain the time between MR&R activities
to 10 years (and thus the pavement layer thicknesses depend on
traffic loading). The results shown in the present paper still hold