Bear in mind that UPS’ (and I’m sure Fedex too) entire operation is in motion 24/7. The brown trucks return to base full of packages, most of which need to be

Bear in mind that UPS’ (and I’m sure Fedex too) entire operation is in motion 24/7. The brown trucks return to base full of packages, most of which need to be pushed upstream to regional sort facilities to go to other areas. Those regional facilities and everything larger are basically working nonstop IIRC. “Continuously delivery” would probably be difficult. Your typical truck will head out with 6-800 packages to be delivered in a 8-9 hour day, and they don’t all come in at once. Maybe you could send out trucks more often during the day, with fewer packages to be delivered over a larger area, but I’m not sure it would be that beneficial. You’d increase fuel and maintenance costs, plus you’d be paying your (fairly expensive) drivers to spend more time driving rather than delivering packages.