Abstract: The first step in establishing a pavement management system (PMS) is road network identi- fication. An important feature of a PMS is the ability to determine the current condition of a road net- work and predict its future condition. Pavement condition evaluation may involve structure, roughness, surface distress, and safety evaluation. In this study, a pavement distress condition rating procedure was used to achieve the objectives of this study. The main objectives of this study were to identify the com- mon types of distress that exist on the Jazan road network (JRN), either on main roads or secondary roads, and to evaluate the pavement condition based on network level inspection. The study was conduct- ed by collecting pavement distress types from 227 sample units on main roads and 500 sample units from secondary roads. Data were examined through analysis of common types of distress identified in both main and secondary roads. Through these data, pavement condition index (PCI) for each sample unit was then calculated. Through these calculations, average PCIs for the main and secondary roads were deter- mined. Results indicated that the most common pavement distress types on main roads were patching and utility cut patching, longitudinal and transverse cracking, polished aggregate, weathering and ravel- ing, and alligator cracking. The most common pavement distress types on secondary roads were weath- ering and raveling, patching and utility cut patching, longitudinal and transverse cracking, potholes, and alligator cracking. The results also indicated that 65% of Jazan's main road network has an average pave- ment condition rating of very good while only 30% of Jazan's secondary roads network has an average pavement condition. Keywords: Pavements, Maintenance, Rehabilitation, Distress types, PCI.

Abstract: The first step in establishing a pavement management system (PMS) is road network identi- fication. An important feature of a PMS is the ability to determine the current condition of a road net- work and predict its future condition. Pavement condition evaluation may involve structure, r...