Apple Maps tells you "after this light, turn right" which is great while I am on my motorcycle and can't quickly read the street signs.

It means my phone can stay in my pocket and I can still get directions to where I am going without needing to look down at the screen to figure out that I need to pass this next traffic light then turn right at "Something st" when I can't even see the sign for "Something st" and looking for that sign would take my focus off the road/other drivers.