It was okay for straight courses, but you had to move all segments to their destinations manually. Even if you used your newly built track, it took quite some time to get far. But if you wanted to go down or even up, you were lost. The Western Train was a huge thing and you had to dig enormous caves with the right inclining. Going upward was actually impossible without scripting large amounts of loam and earth.

If I'd introduce a transportation system, I'd use something like a placed on the walls. You'd build a base station which would consume the material and power, offer a trackhead to extend the system and some large buckets / barrels to transport materials and clonks, which would easily be hooked into the track.