In my opinion, roads way more expensive at the start of the game, gold is way less common, and the difference between paying 6 or 3 gold to connect two cities is a lot more relevant at that point.Just some feedback:
3. +2 Production in all cities. Road/rail maintenance halved.
I think this should be replaced by something else. In early eras roads don't cost much, while in late eras +2pr. is nothing. If we want more money in late eras, we have plenty of much more attractive policies.
The idea of the extra production is to let your cities build up their infrastructure faster, it was present in the current liberty-tree and the vanilla liberty-tree for the same reason.
I can see your point about this policy not really holding up, but that's sort of the point, not all ancient era policies should stay relevant for the entire game.
There are border-expansion policies in both tradition and might however so that would probably feel a bit overlapping.5. Blanc.
Liberty tree is all about expansion, so we can put here some discounts on tiles acquiring and alter the bonuses from Angkor Wat.
I appreciate your feedback, things being too quiet gets so boring.