DEVELOPMENT OF A COMPOSITE PAVEMENT PERFORMANCE INDEX TO MONITOR THE PAVEMENT CONDITION IN UPNM

Road surface condition of a pavement is one of the most important pavements features as it affects the dynamic load of vehicles travelling on it, the quality of travel and the vehicle operating cost. It is important to maintain a good road surface condition in order to promote safety and to reduce traffic accidents and injuries. The Composite Pavement Performance Index (CPPI) is one of the important tool to measure the performance or condition of a pavement. By conducting pavement evaluation using the CPPI, civil engineers could prioritize the maintenance and rehabilitation which usually incurred a huge cost. In University Pertahanan Nasional Malaysia (UPNM), there is no proper maintenance and rehabilitation scheduled for the roads as there is no performance evaluation tool available to measure the pavement performance or condition. Thus, the objective of this study is to develop a Composite Pavement Performance Index (CPPI) to monitor the pavement condition and to rank the roads in UPNM. In order to develop the CPPI, road defects data were collected from 6 internal roads in UPNM. From the data collected, 4 major types of distresses: rutting, pothole, crocodile cracking and longitudinal cracking are more likely to occur on the pavements in UPNM. By measuring the growth of the distresses over a period of 6 months, the CPPI was developed to rank the roads in UPNM. Using the CPPI, this study demonstrated that the road connecting to the library building experienced the worst pavement deterioration in UPNM with a value of CPPI of 24. The condition of the pavement was classified as poor. Thus, it is recommended that the road connecting to the library building should be reconstructed to increase the safety for road users.