Publications

This user guide provides guidance on the Investment Prioritisation Templates. The templates are designed to help road authorities consider an investment opportunity through multiple dimensions, such as the benefits of the project, and risk with and…

Currently road authorities rely on multiple different decision making-frameworks to help identify investment opportunities for the road network. The framework used often varies depending on the nature of the expenditure. For example, cost benefit…

This report proposes a holistic and risk based prioritisation framework to support investment decisions across road asset classes and expenditure categories. Transport agencies currently rely on different decision making frameworks to help identify…

This report documents the surface life prediction models that have evolved from the long term sampling of the bitumen in sprayed seals and thin asphalt surfaces. The estimation of surface life is predicated on the basis of the mechanism of bitumen…

Improved RD models for sealed granular and asphalt pavements are needed. Pavement performance history data from state road authorities and New Zealand (SRAs) were used for calibrating RD models. The calibration and refinement of RD models is…

This report compares the deterioration of two pavement groups in the US-LTPP program (GPS1 and GPS2) with that of the Australian LTPP GPS1 and GPS2 pavement groups. For the non-freezing group of the GPS1 pavements, the US sections had similar…