I've tried a few times to construct my city in 3 distinct "blocks" "res-industrial-commercial"and only have people travel between them via train as I though by doing this I'd cut down on heavy trucks and such-like going through my city,but I keep running into the issue that those utilities don't unlock straight away unless I unlock them manually which unlocks everything else as well and I prefer my city to grow into such things naturally and secondly when I do get a good system going, my mentally deficient citizens refuse to use the service I've setup for them even though I can see that it works. Is there any way to fix this? I don't usually play with too many mods apart from such things as Auto-bulldoze as I'm not exactly sure what would assist my gameplay.