The effects of traffic loading and the environment will cause every pavement, road or structure no matter how well-designed/constructed to deteriorate over time. Maintenance and rehabilitation are what we use to slow down or reset this deterioration process. Maintenance actions help slow the rate of deterioration by identifying and addressing specific pavement and road deficiencies that contribute to overall deterioration.
Maintenance and rehabilitation of roads.
Maintenance
Rehabilitation is the act of repairing portions of an existing pavement to reset the deterioration process. Reconstructing an entire pavement, however, is not considered rehabilitation but rather new construction because the methods used are generally those developed for new pavement construction.