The science of conservation that aims to maintain the functional characteristics of the road over time. For simplicity’s sake, it could be somewhat compared to medicine, also being composed of a diagnosis phase-with the identification of the various problems present-and a treatment phase, with the planning and execution of remedial interventions.
In reality, with the exception of the highway network, maintenance consists mainly of remedial work necessary to ensure the safety of users, which is now compromised. It is cost / benefit ratio and intervene at the right time with preventive maintenance, in order to cure problems from their origin.
