It's a cute idea. Though I think the limiting part is the tube itself. Installing underground tubes is going to be expensive. Maybe it would make more sense to

It's a cute idea. Though I think the limiting part is the tube itself. Installing underground tubes is going to be expensive. Maybe it would make more sense to forgo the tube and just use electric vehicles. You could install overhead power lines in some of the busier corridors. Delivery vehicles could trolley along until the last half or quarter mile. Then, they'd have to switch to batteries.