This was one reason I moved to Nitrogen. I wanted a big map (10K). Also, I found road gen and some POI placement was wonky. Some roads would go almost vertical. Nitrogen is faster, has less oddities, but does a reasonable job creating urban clusters, with rural POIs randomly distributed and connected to a road that is usually drivable. I have seen some odd roads when a POI gets placed in pretty non-traversable terrain. You would need an algorithm to build switchbacks to keep the inclines under 30 degrees. Nitro also will carve huge gashes in mountains to place freeways, rather than have tunnels through the mountains. I'm looking forward to seeing what TFP are doing to world gen in A20.