The Romans used to have an important salt trading route from Hall in Tirol to the Lake Constance, which mainly was used until the train was built through the Arlberg in the early 20th century.
Roomlastele oli tähtis soolatee Hall in Tirolist Bodeni järveni, mida kasutati peamiselt kuni raudtee ehitamiseni läbi Arlbergi 20. sajandi alguses.