I know this is grossly simplifying but it seems the algorithm works exactly how a sane delivery company would work. Imagine a company in Paris that has multipl

I know this is grossly simplifying but it seems the algorithm works exactly how a sane delivery company would work. Imagine a company in Paris that has multiple UK deliveries coming up. First let's lump together all the deliveries in London. Then let's lump together all the deliveries in South London, then let's lump together everything in neighborhood Foo in South London. Then the routes you worry about are your longest ones, like getting to London or into London in the first place. This makes the assumption that it's quicker to get from a spot in South London to neighborhood Foo than it is from South London to say Leeds. It didn't appear to me from this article that any consideration was given to large late orders or what you mentioned, but that would up the complexity.