Hi,
Not sure if anyone has found this but so far on 1 road (Tinwood Lane) It always says "yes" before the road name. I am guessing this is something to do with the map and the code, I am no expert. 
Hope this can be fixed!
https://gyazo.com/1d42011533abfbfaa80292975d7012c6
Many Thanks,
Jack 
That is most likely a mistake on Open Street Maps, you can edit the map yourself if you wish to fix it.
How do I go about that then!
I would suggest going here: http://www.openstreetmap.org and see if you are able to edit the specific street that you are talking about. It may take a while for it to show up on Mission Chief.
As footballcursh3r says, it can take up too a couple of weeks to show up
It is correct on the map though!
Thats probably because he might have just done that
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