An 1144 gives an assist to a freight on the Semmering. The Viaduct was built in the mid 1800's with hand tools. In 2032 the base tunnel opens diverting most if not all freight off the mountain.
Güterzug! or in English a freight train gets an assist from an 1144 up the 2.5% grade of the Semmeringbahn. The base tunnel in 2032 will allow freight to bypass this route.
Two Alpenstaubsaugers (Alpine Vacuum Cleaners) named due to the sound of the fans, descend the mountain to push freights up. Grades run near 2.5% requiring helpers on freights.