A road surface is the top layer of a road that vehicles drive on. It is designed to provide a smooth and durable area for transportation. Common materials used for road surfaces include asphalt and concrete, which are chosen for their strength and ability to withstand weather conditions and heavy traffic. The quality of a road surface affects vehicle performance, safety, and comfort. Well-maintained surfaces reduce wear on vehicles and improve fuel efficiency. Additionally, factors like pavement markings and drainage systems are important for ensuring safe driving conditions and preventing water accumulation on the road.