At a road construction site mostly the old road is removed with a big road miller. Sometimes a digger helps and carries the large parts away. They are loaded onto a truck. With the tar machine the road is newly tarred. Tar is a mixture of gravel, sand and crude oil. Here the tar is still very hot. When it cools down, it becomes very hard and the cars can drive on it. A new motorway or country road is created.
At the forest construction site you don't see tar machines, but huge tractors with sometimes funny tools attached to them. This tractor here has a winch for pulling the trees out of the forest. Other tools cut the branches and saw the trunks. The forest workers, too, cut trees. They wear protective clothes so they don't get hurt. They cut the trees with the motor saw and chop them up.