Improvements

Improvements:
Improvements are just that; modifications made to the area to improve conditions. Unlike Strongholds, they rarely provide living space for your population, but rather small bonuses to whatever uses them or is in proximity to them.

• Roads: Roads are the most basic improvement, and the only one available from the outset. A road allows for increased movement along it, and is one of the few things that you can build outside of your terraformed area. It also forms the basis of any trade routes you may create. A road may only be built adjacent to a Stronghold, or to another road.
  Population required: 1. Time Required: 1 season. Cost: 1 stone, 2 carbon.
  NOTE: When building outside of your terraformed area, the time required increases to 2 seasons.