So I just realized today looking at the Chicago arrivals/departures on one screen (link) that in reducing Midwest service during Covid, Amtrak partially broke any connection between the Wolverine and points west of Chicago.
On the Hiawatha and Lincoln service, there's still trains both ways in the morning and afternoon/evening. On the Quincy and Carbondale services, they kept the morning inbound and afternoon/evening outbound; the 4pm Illini isn't ideal for Western connections but that was always the last corridor train. The Pere Marquette and Blue Water are each only one round-trip normally, so nothing changed there.
But then we turn to the Wolverine. Inbound Wolverine 351 gets to Chicago in time to connect to the Western trains, but they picked 352, leaving Chicago at 1:25pm before any Western trains have arrived, as the outbound Wolverine. So a person on the Wolverine line can make a same-day connection to go west of Chicago but can't make a same-day connection at Chicago from a Western train to go to Michigan. If they'd picked 354 as the "surviving" outbound Wolverine instead of 352, it still wouldn't be ideal as the train would leave Chicago at 5:50pm, but at least there'd be a valid connection from the Western trains.
So did the State of Michigan have to agree to this, or did/does Amtrak have sole discretion on which Wolverines to keep running?
On the Hiawatha and Lincoln service, there's still trains both ways in the morning and afternoon/evening. On the Quincy and Carbondale services, they kept the morning inbound and afternoon/evening outbound; the 4pm Illini isn't ideal for Western connections but that was always the last corridor train. The Pere Marquette and Blue Water are each only one round-trip normally, so nothing changed there.
But then we turn to the Wolverine. Inbound Wolverine 351 gets to Chicago in time to connect to the Western trains, but they picked 352, leaving Chicago at 1:25pm before any Western trains have arrived, as the outbound Wolverine. So a person on the Wolverine line can make a same-day connection to go west of Chicago but can't make a same-day connection at Chicago from a Western train to go to Michigan. If they'd picked 354 as the "surviving" outbound Wolverine instead of 352, it still wouldn't be ideal as the train would leave Chicago at 5:50pm, but at least there'd be a valid connection from the Western trains.
So did the State of Michigan have to agree to this, or did/does Amtrak have sole discretion on which Wolverines to keep running?