The term "road surface" refers to the topmost layer or paving material that is laid down on a road, highway or street. It can be made from various materials such as concrete, asphalt, brick, gravel or tarmac and serves as the driving or walking surface for vehicles and pedestrians alike. The condition of the road surface plays an important role in determining how smoothly traffic flows on a particular stretch of road, with rough surfaces causing discomfort to drivers and increasing the risk of accidents. Therefore, maintaining the quality of the road surface is crucial for ensuring safety and efficiency while using public roads.