Guess the movt cost - K43

[Xerxes77]

That is very helpful.  So, on the parameter data screen, trail, secondary and rail are modified by ground conditions.  (Not movement by "Rail" - R).  The hexside factors listed on the parameter data screen below these factors are not affected by ground conditions.  Noting  that Primary road has its own rule.

thx

That is my understanding, however I'm not 100% sure as I have not tested them all.

I've always found the terminology around hex sides confusing, as functionally there are either "border" or "crossing" features, i.e. streams and walls run along hex sides, but roads and rails cut through them. They are lumped together in the parameter data, but apparently it's the features that actually cross the surface of a hex that are affected by ground conditions.