A layer of loose aggregate placed over an existing asphalt surface forms a durable and cost-effective roadway. This method combines the stability of an existing paved surface with the drainage and aesthetic appeal of a loose stone surface. An example would be a homeowner choosing to cover a cracked and worn asphalt driveway with a layer of gravel to improve its appearance and extend its lifespan without the expense of complete repaving.
This approach offers several advantages. It provides a permeable surface, allowing water to infiltrate and reducing runoff. It can also be less expensive than full asphalt replacement, offering a practical solution for revitalizing deteriorated paved areas. Historically, this method has been used in rural settings and for secondary roads, demonstrating its long-standing practicality. It offers a balance between functionality, cost-effectiveness, and environmental sensitivity.
