I'm working on a mod (Star Trek) slowly and I've got an idea for resources.

The basic idea is that everythign will be desert, but I would like to place resources out in "space" (desert) Anyway, when I automate a worker it will connect the resource first and then covers the area with roads even though there is no benifit. Can I get the worker to only build roads in the desert to connect cities or a resource? Also it would be preferable if these connections were only one tile, not a giant web like the ai tends to do.

I require this because I plan on doing a dotted line overlay to mark these trade routes (roads) in order to keep space looking like space.

Or do I need to wait for the SDK to mod AI in that way, any ideas?