How fast do Metra trains actually run?
I believe it depends on the line, i.e. UP or BNSF for example, but they have lots of 79 MPH speed limit areas.
The couple that I have rode didn't really ever get up that much speed, but we were not going very far out of downtown.
I'm pretty sure that the express trains that METRA runs on the BNSF line we live on, operate over 70 MPH.