Any moderately busy pizzeria will queue up a few delivery orders that end up being ready at around the same time, and will have one driver deliver them all with

Any moderately busy pizzeria will queue up a few delivery orders that end up being ready at around the same time, and will have one driver deliver them all within a single trip. The trip may take marginally longer than if just one order were being delivered, but it ends up fulfilling five or six orders with one trip. The cost per order ends up being decreased to a reasonable level.