[dilly_li]

I think that's probably because Apple doesn't even know that backroads existed so Apple Maps couldn't optimize the route.

If Apple Maps had knew those backroards, they would probably output the same routes! :-D

[voisin]

I thought that might be the case but when I zoom in I can see the back roads in Apple Maps. I am pretty sure it is a algorithm issue. Google doesn’t have enough data about how slow those back roads are and maybe relies on that data more than Apple does.