Amtrak's Chicago-St. Louis trains now reach 110 mph.

Amtrak's St. Louis-to-Chicago route began running most daily trains at speeds of up to 110 mph after a four-year delay due to GPS-related safety technology installation and testing. The passenger rail line plans to operate with the new speeds for several weeks before changing schedules based on the old 90 mph maximum. The goal is to achieve a demonstrably and reliably shorter travel time than the driving time between the two cities of about 4.5 hours. The upgrade of the St. Louis-to-Chicago Amtrak corridor was funded largely by economic stimulus money allotted in the Obama administration.