There is a branching and straight rail line....dilema? optimization? (i can't think of the word for it). Anyway. The rail system as it is bends the rail lines to fit with the stations and regions. A more effecient system would be to branch off rail lines. For example, look at NW Blacrafti. You could connect lotservania, deoxyworld, mudkipzania, desertopia, vatallus by extension, and quonbla all to mid ampluterra and the have ampluterra head to spawntown. It's more effecient, but you'd need to make stops and all that. You need to take into account if the people who own those regions afk on the minecart or what. I'm not suggesting rerouting the rail system, it's too much trouble and the rail system is fine. But it's something to think about when new rails are needed.