Back in November I reported this one. I did some further testing, and discovered some additional information that could be crucial to resolving these. Obviously, the abbreviation "Dr" is working properly in most cases. However, there are a few places where it continues to be pronounced "doctor".
I discovered recently that when I approach the road from the east, and the expected voice instruction is to turn right, then it says "doctor". But if I approach from the west, the expected voice instruction is then to turn left, and then is says "drive". This is very interesting that the prefix of the turn direction is having an impact on "drive" versus "doctor".
I tested this at two different intersections along this short road, and I get the same result -- "doctor" when I turn right, "drive" when I turn left.
If you need me to do further testing, there is also a Glen Hill Dr N just 3 blocks north of here -- not sure whether the "north" versus "south" direction is relevant to the "doctor" versus "drive" decision, but based on this new finding, perhaps it might also be related. PM me if testing this becomes necessary.
Hopefully this new information can steer the people doing the debugging to finally find and fix this weird pattern.