In 1998, rut-resistant pavement was adopted, in Republic of Korea, to prevent plastic deformation. This paper is an investigation of the relationship between the optimal maintenance strategy and the economic level using the guidelines set out in the HDM-4 (Highway Development & Management-4). Also the pavement deterioration models incorporated in the HDM-4 have been calibrated and adapted to local conditions on the national highways in Republic of Korea. Observed data, such as rut-depth and roughness was used todevelop the deterioration forecast models. In this paper the performance and economic efficiency were used to investigate the differences between rut-resistant pavement and conventional hot-mix asphalt (HMA) on the national highways in Republic of Korea. Based on the calibration results on the HDM-4, an economic evaluation, including agency cost and user cost, was performed for 22 road sections. The results show that, for most road sections, rut-resistant pavement performs as well as, or better than, conventional HMA. Furthermore, it was confirmed that the application of HDM-4 is a useful tool for the pavement management system in Republic of Korea. For thecovering abstract see ITRD E139491.
Abstract