Road surfaces are the materials used to create the top layer of roads, providing a smooth and durable area for vehicles to travel. Common types of road surfaces include asphalt, concrete, and gravel. Each type has its own advantages, such as asphalt being flexible and cost-effective, while concrete is known for its longevity and strength. The choice of road surface affects factors like drainage, safety, and maintenance. For example, gravel roads are often less expensive to build but may require more upkeep. Proper road surfaces contribute to better driving conditions and overall road safety for all users.