This post is saying 30-35 billion for the whole system, so the first segment will probably be about 7 billion. That's for a transport system between Zurich and some 5k inhabitant village I'd never heard of outside of this project, and that doesn't appear to be a significant pre-existing logistics hub. And on top of that they're not actually doing anything to solve the local distribution problem, e.g. all of Zurich will be handled by 2 or 3 hubs. So the last 10 kilometers will still be solved by trucks driving in urban congestion.
What a bizarre fucking project. Everything about it is screaming that it's totally uneconomical, but they've somehow convinced a lot of very reputable Swiss companies to invest. Is this just all based on the assumption that Swiss interest rates will be negative forever?