Have you try the new modifier 'Sweep' in max? It is a handy new tool which can build surface from any spline shape very simple. You draw out a path, you can even have another path come out of it (like a juction) then apply the sweep with a custom shape, and it will build the road automatically, just like lofting, you then can fine tune with edit poly to your desire track.
For texturing, that should assigned mapping co-ordinate automatically. You can use blend material with vertix colour map for the blending mask, which you can paint directly on the actual object. The two materials to make up the blend can be e.g. smooth track surface and cracked track surface, This technique can help breaks the regular tiling patterns from normal texture mappings.
no like.. really.. lol someone post a picture of what section of a track they want from top down and i will make it (for my own good) and will share it
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