"Løsningen" blev i sin tid anvendt til en hel konkret opgave i Italien, se: https://www.lowtechmagazine.com/2009/07/trolleytrucks-trolleybuses-cargotrams.html - scroll ned til lidt før midten og teksten:

"Another historical example is the "Valtellina Dam Project" in Italy (below). These two lines with a total length of 80 kilometres were built in 1936 and remained in service until 1962. Twenty trolleytrucks transported concrete, sand and other construction materials to build two large dams."

M.v.h.
Niels