Four road pricing systems, with charges based on cordons crossed, distance travelled, time spent travelling and time spent in congestion, have been tested using the congested assignment network model SATURN and its elastic assignment demand response routine, SATEASY. All tests have been based on...

This paper describes a methodology which permits optimal strategies for strategic transport models to be found by use of a limited number of model runs together with regression modelling of the resulting response surface. Typically, it will be the case that the number of policy variables is...