Frankfurt studies cargo tram opportunities
https://www.railwaygazette.com/light-rail-and-tram/frankfurt-studies-cargo-tram-opportunities/58794.article
Many railway companies are thinking
about taking part in freight service, due to decreasing passengers.
Judging from the fact that Randen, a tram operator in Kyoto, began freight service, cargo service in Frankfurt tram would be successful. That's because Frankfurt tram covers much more portion in the city than Randen does in Kyoto.