The main road system shows the basics of Stervian human geography : the developed center of the country is clearly the core Stervian lands area (valleys of the rivers flowing down to Big Three Bay, aka Mishart Bay).
Highways are so far mainly used for commerce between the main cities of this area and the western coast.

The southern part of the country is clearly lacking of a dense road network. The rainforest areas of central Zanga were for a long time a powerful obstacle to communications. National Road 6 is a clear example of a main road designed for strategic territorial control.