I seem to be missing something here, so I want to see if anyone has any words of wisdom on the subject...
I've set speed limits on my route for particular sections of track. In one particular section, i've set the speed limits at 40mph primary speed, and 25 mph secondary. As I understand it, when given a clear indication on this section of track, trains can move at maximum speed of 40mph. Anything more restrictive, such as an approach indication, would be 25mph. However, the maximum speed allowed in-game is never more than 25mph, even with no other traffic on the line and clear signals.
Am I misunderstanding the way that signals work in Railworks? Should I be simply setting the maximum speeds for the track and leaving the secondary speed blank?