In this tutorial,we will import an autocad file into max and make the terrain landscape.But the source data in the AutoCAD file is not ideal,so you maybe need to make some change on initial design.

1. Create a terrain surface and make road

   
   

2. Create pavement faces and weld them to the road

   
   

3. Integrate Roads and pavements with the terrain

   
   Connect Road to Terrain

4. Make stairs and patch grass sod