Why isnt there an unmanned transport infrastructure which could be built between endpoints.
Take Hyperloop as a model-example. Instead of hyperlooping people about - why not only freight?
Imagine a mini-hyperloop enclosed tube about 10-feet in diameter, which has delivery sleds between hubs, which interconnect...
Then do a 20' diameter tube with sleds, and you have a trucking system which can be managed with BGP level routing experience...