As I have stated before, Amtrak to MCS, as far as track upgrades go, is "no biggie". The building would need to be renovated, yes, but the tracks are already there and Amtrak would have no problem running into MCS. In addition, an Amtrak MCS station opens up the door for HSR on the Chicago-Toronto corridor, as Detroit sits right at the mouth of the Canadian rail tunnel.
Bookmarks