Where exactly do the Ocado artics go?

Question

Ocado is an online shop but since artics don't deliver to people's houses, where do they go? My guess is that they transport the food from one depot to another or they collect from their suppliers, but these are just guesses.

Answer 1

Ocado supply Waitrose stores, so they could be delivering to those stores.

Answer 2

The artics travel from the central warehouse to distribution hubs where the small vans you see pick up their loads.