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Edge filtering is generally the default option because traffic engineers consider it easier. They're used to their job being to facilitate movement, mostly of drivers, so they go for edge filtering and loops. However, one of the key aims of filtering is, I'm afraid, to make driving less convenient and more cumbersome, and that includes making people turn around, same way in same way out. One key argument against not doing loops in a cell used to be that the bin lorries and emergency services need to get around, but with the new fashion for camera-enforced permeable filters, that's no longer a concern.
Also, and here I part company with people who do such things, is that I'm 100% opposed to facilitating the grocery delivery sector in any way whatsoever, so if filtering adds to the time their drivers take and reduces their profits, I'm all for it (and I'm well aware of the conditions their drivers work under, and that this might be taken out on them; if they were paid and treated properly, these businesses probably wouldn't exist, so that's another thing to get busy about). Needless to say, I'm also 100% opposed to the trend to order everything else from the Internet, usually from the worst company on the planet. It's utterly unsustainable and should quite simply be legislated against, and the worst company on the planet should be destroyed. While this is not going to happen, here again proper filtering will do a nice job of cutting into profits.
Oliver Schick-
Also, and here I part company with people who do such things, is that I'm 100% opposed to facilitating the grocery delivery sector in any way whatsoever, so if filtering adds to the time their drivers take and reduces their profits, I'm all for it
Isn't it better for one delivery van to visit to multiple households than have each of those households drive to the supermarket individually though?
Edit: would also add potential to reduce parking spaces at supermarket whilst still serving same number of customers
mind_maze
Thanks for the detailed response. I see what you're saying and it includes a few things I hadn't considered.
The main issue I have in this specific example is the lack of turning areas if cells are filtered in the middle. I'm not sure how this is normally avoided.
Also, increased delivery driver movements due to having to enter and re-enter a cell multiple times to access different ends of the street.
These are the two plans being considered although it seems that the clear preference is for edge filtering.