How to create slope roads?

Hi. I am trying to create a map for my game, something like this. Generating Complex Terrains for Unity3D I am interested in creating a slope road in Unity, using only free stuff. With Unity basic tools, I couldn’t create a proper slope. I wish to create a broad road that has a slope. How to create slope roads in Unity?

You can create a heightmap, import it in your terrain and then paint the terrain parts like a road :wink:

Use this, there is a free version:

Easy Roads 3D