Prediction of Remaining Service Life of the Yogyakarta-Kaliurang Provincial Road Section of Sleman Regency using the PCI Method

Abstract

Roads, as part of the national transportation system, play a crucial role, especially in supporting economic, social, cultural, and environmental aspects. They are developed through regional development approaches to shape the spatial structure to achieve national development goals. One commonly employed method for assessing road damage is the Pavement Condition Index (PCI). This research aims to predict the remaining service life of the Yogyakarta-Kaliurang Road based on the PCI analysis. This study was based on road damage survey data. The visual observation revealed various types of damage, such as alligator cracking, bleeding, block cracking, bumps and sags, corrugation, depression, edge cracking, lane or shoulder drop-off, longitudinal and transverse cracking, patching and utility cut patching, polished aggregate, potholes, rutting, shoving, slippage cracking, swell, weathering, and raveling. The PCI analysis generated an average value of 59.4%, falling within the fair pavement condition. The highest pavement index was recorded from STA 15+000 to STA 15+100, with a score of 100%, signifying a good condition. In comparison, the lowest pavement index was discovered from STA 19+050 to STA 19+100, with a score of 12%, indicating a serious condition. The analysis of remaining pavement life yielded an average remaining life between 1 to 5 years.