A cursory look into this reveals the burgeoning field of “freight on transit” which seems to mostly be patents and papers at the moment, with a couple exceptions (like the Zurich trash tram).
I wonder about bespoke goods transportation too. Obviously trains within cities exist, and there have been some elaborate vacuum tube networks in small areas before. Has anyone built a network of tiny tunnels for delivery robots, for example? What wacky stuff is out there?
Delivery robots – just a few years ago, the stuff of pure science fiction – are now very much a reality and quickly becoming a part of everyday life for many of us. In fact, I will usually come across five or six when I go for an evening jog in my hometown of Milton Keynes, England!