Estimation of pavement rehabilitation cost using pavement management data

Estimation and scheduling of future pavement maintenance and rehabilitation (M&R) works are one of the primary concerns of highway agencies due to the limited allocations in budget and resources. Two approximate methods for estimation of pavement rehabilitation cost are presented and compared in this study based on highway present condition index (HPCI) and rehabilitation history. The former is based on pavement condition, while the latter is based on historical and statistical trends. Database from a pavement management system (PMS) of various highway sections surveyed in Korea were used in this study to establish a relationship between HPCI and pavement service life and to analyse the trends of rehabilitation periods. The two simple methods presented provide useful information and probable range for the various highway agencies to guide them in the preliminary planning, budgeting, estimating and scheduling of their future pavement M&R works.