Defects in Flexible Pavements: A Relationship Assessment of the Defects of a Low-Cost Pavement Management System

Pavement maintenance is a key concern for pavement management authority. Countries (especially developing countries) are facing severe funding challenges regarding schemes. The existing methods goal-specific and lack integration of various indicators that significant low-cost PMSs. Thus, this paper investigates the possible defects may occur in flexible pavements as well relationships between different defects. A detailed literature review was conducted to identify all features considered questionnaire designed seek expert opinions on their PMS. data were collected from 283 experts currently working authorities Aggregated mean score, box plotting, chi-square test used analyze data. It concluded bumps/sags (3.17) major reported by Pakistan, followed fatigue cracks (3.07). Rutting (2.98) rut depth third-ranked study. Depression (2.96), potholes (2.76), longitudinal crack (2.69), edge (2.55), roughness (2.51), deflection (2.50) also regular activities Pakistan. results an acceptable range three-mentioned validation methods. correlation show most structural, functional, safety, serviceability reject null hypothesis; thus, there close these observed pavements. In last stage, PMS model suggested assist road countries make decisions effective rehabilitation.