Such tracks make it possible, for some effort, to transport loads several times heavier than normal roads would allow.
The picture was taken in Kosovo while driving down a normal road.
On normal roads, the asphalt is usually 8 to 10 inches thick.
The width of its lanes allows for speed limits above the normal rural roads.
It was a normal two-way road instead of the single-track ones we had been moving on.
The fastest duro for the normal road is around 80a.
But for most normal road use the i40 is comfortable and capable of long distances without exhausting occupants.
Bus drivers are asked to drive as they would do on a normal road.
The road surface is asphalt, unlike normal roads which may have concrete surfaces.
The black piping was also incorporated into the team's normal road gray uniforms.