Atlas 1604 ZW Excavator Railwork: The Ultimate Heavy-Duty Machine Tackling Berlin’s U6 Ubahn Upgrade Railway Works! The Atlas 1604 ZW Excavator Railwork is one of the most impressive heavy-duty rail machines brought to upgrade Berlin’s U6 Ubhhn from Kurt Schumacher Platz to Tegel in the north. The northern U6 line is undergoing a significant renovation […]