In addition to the environmental benefits, the trains are smoother ... environment in mind. Metrolink is working to replace 12 of its older diesel locomotives with new “Tier 4” locomotives.

The locomotives that will soon be driving the trains are a brand-new type for Amtrak. Amtrak chose the ALC-42 Siemens Chargers to replace its current locomotives on all of its long-distance routes ...

In June 1938, the New York Central introduced new locomotives and Pullman cars ... would become iconic -- Henry Dreyfuss. Streamliner trains were able to achieve greater speed on the storied ...