The locomotives are good for 125, thus maintaining 110 on the additional segments of upgraded track should not be a problem. But getting the trains between Alton and Saint Louis, or Chicago and Joliet, will still be the problem.
[Illinois secretary of transportation Randy] Blankenhorn told the Tribune he did not expect major time reductions on routes other than the Lincoln service, but he believes the locomotives will create greater reliability "across the board."For the record, the new service will be more frequent, but not much faster than it was fifty years ago.
"Our focus on the other routes is how do we make them more reliable, how do we work with the freight railroads to make that happen," he said.
Lady Baltimore, and the various Hiawathas and Zephyrs, could not be reached for comment.
Image retrieved from Mike's Railway History.
And I see from that post that there's still opportunity to contemplate new coaches for the Chicago regional corridors.