2012 – NZ – Modelling of Extreme Overloading Effects

This study was undertaken to establish whether various pavement deterioration models incorporated into the New Zealand – Deighton’s Total Infrastructure Management System (NZ-dTIMS) and Highway Design and Maintenance Model 4 (HDM-4) pavement management systems could be modified to reliably predict the condition of a pavement after it had been exposed to sudden extreme traffic loading, which can occur with the commencement of forestry logging, mining or enforced detours. Specifically, the deterioration models considered were for roughness progression (both the NZ-dTIMS and HDM-4 models) and rutting progression (NZ-dTIMS model only).