I deleted the southern segment of Cann Drive. It clearly looks different on aerial images and I believe it's impassable to vehicles and most likely doesn't allow through passage on foot either. Probably could have been disconnected (to disallow through passage) and turned into an alley or footpath, but, without local knowledge or a survey that's a bit too much guesswork for my liking. I don't see any alleys between buildings or minor footpaths mapped in this area anyway. Only a few driveways and some trails. So, for now, until someone who has local knowledge or is able to go surveying comes along, I think this will be an okay solution.