The first new diesel, the six-axle SDP40F (a variation based on the venerable SD40-2) wasn't a success. Fortunately Amtrak was thinking ahead and had a design for a shorter-range four-axle diesel ...

Amtrak, after investing more than $4 billion in a year to improve its creaky infrastructure and aging fleet, said it expected to make a profit for the first time under President Trump. By Tim Balk ...