HIGHWAY COST ALLOCATION METHODOLOGY FOR PAVEMENT REHABILITATION AND CAPACITY-RELATED COSTS OCCASIONED BY AN INCREMENT IN HEAVY TRUCK TRAFFIC

A methodology is outlined for estimating incremental pavement rehabilitation and capacity-related costs that would be occasioned by loading an increment of bulk commodity traffic on a highway link. The cost estimates are referred to as "build-sooner costs" because they represent the financial impact of the increment of traffic on the future timing of pavement rehabilitation and capacity improvement projects. The analysis encompasses eight bulk commodity truck movement scenarios in the Province of New Brunswick, Canada. The build-sooner costs are compared with incremental user fee revenues that would be generated by these movements if they were to be captured by the truck mode.