What are metal scars on the roadway typically caused by?

Metal scars on the roadway are typically caused by strong and hard parts of a vehicle. These scars refer to the visible marks or grooves left on the surface of the road when heavy vehicles, such as trucks or buses, drive over it. The metal components of these vehicles, including parts like wheels and undercarriages, can exert significant pressure and cause damage to the roadway surface, especially if the vehicle is heavy or traveling at high speeds. The hardness of metal compared to the asphalt or concrete materials of the road surface makes it likely to leave marks and create visible damage over time.

While heavy rain and water accumulation, road work, and natural wear and tear may affect the condition of a roadway, they typically do not result in the specific metal scars seen from heavy vehicles. These other factors might contribute to general roadway deterioration or maintenance needs, but the distinct scars are a direct result of the interaction between metal parts of vehicles and the road surface.