Talking about landscape texture, we have to understand that it is not huge texture with roads, paths and streams. All these things are put using so called texture objects, like Path (texture built along the path) and Poly (texture with pre-defined form). This shortens build/modification time and reduces traffic dramatically.

For example, if you want to build a road, you draw its “path”, and then just select its texture and edges “mask” (one more Good Thing to make surface seamless).

We managed to hide sharp turns and to make texture “solid”.