Maintenance of roads is undertaken to ensure the safety of traffic and to sustain the servicebility and appearance of the road maintenance involves remedying defects such as potholes thet occur in the carriageway from time to time (corrective maintenance) and providing treatments such as crack sealing which will slow the rate of deterioration (preventative maintenance) typical maintenance activities include crack filing and sealing minor reshaping minor sealing minor stabilizing pot hole patching surface correction sweeping