OK, I am a Maya modeller myself, so you are close, but if I could nudge your thinking a little bit.

What we have done is to first build some standard asphalt road segements (making sure your have some high quality asphalt textures with tire markings, dirt and appropriate line painting for your country. Not planes - some "boxes" with some depth, because you are going to need to include the road margin areas in your textures.

Then whatever other objects you need - in our case, a long series of models of bridges and culverts, etc. All with some road/asphalt segements laid across them.

Then, you could export some terrain pieces right out of Vue and into MAX, tweak them so that they fit well underneath, against and along side your road segments.

Finally, build your actual long road stretch for your scene in Max - put everything together the way you want it.

Then, export that whole set of objects out of MAX as *.obj files, and import into Vue. Now, build out the rest of your surrounding terrain in Vue. And all the rest of your scenery elements.

Clear?