After laying the base layer, the road paving machine or the road paving car is passed, which when it runs over the gravel works to compact it well and make it a smooth layer. Pouring and paving it on a road that has cooled down and formed a very compact layer, and sometimes it is left for two days until it holds together more. The important thing is that the road when paving it should be solid, free from any cracks, and bear the force of walking on it and bear all types of cars so that it is not exposed to breakage and potholes. Because of the large size of the cars that drive it.