Amtrak No. 331, a Hiawatha Service train from Chicago, arrives at the Milwaukee Intermodal Station in downtown Milwaukee, Wisconsin, on the morning of November 13, 2017. The train is powered by new Siemens SC-44 Charger No. 4621 lettered for “Amtrak Midwest” service.
Tier IV locomotives are the safest, cleanest, and most fuel efficient locomotives on the rails today. Unfortunately, most of them are ugly and are as quiet as an ACS-64.