by Potjeh » Sun Mar 13, 2016 3:16 am
You can create ramps, although it takes lots of surveys. Basically make a one-tile wide strip perpendicular to desired ramp orientation and flatten it. Then on the next higher tile make another one tile strip but set it's level higher than the previous (up to 3 unit difference if you want to build walls on this ramp). Flatten this strip and make the next one, rinse and repeat. The result is that just one side of the strips is left flattened to the set level, while the other is higher by how ever many units you decide.

Bottleneck