Write to IDOT, the governor, and your state legislators. Tell them that the trains are running perfectly fast, and that's great, and thank them for that. But then say the trains are arriving at stations early and are being delayed because of Union Pacific's irresponsible intransigence and unwillingness to tighten the schedule. Ask them to either negotiate with UP to make the schedule tighter, or (better) to buy the line so that you don't have to argue with UP ever again. Explain that you understand that some schedule slack is needed to allow for things like PTC upgrades, the Springfield track relocation project, etc., but that it makes no sense to be sitting for 20 minutes at Dwight because you haven't bothered to renegotiate with Union Pacific -- and it is bad for Union Pacific too.