Osborn
Osborn and Regents Park were once outflung expansions of working-class housing. Osborn, centered around 7 Mile Road, has a reputation as a hotbed of gang activity, at least that's the impression one gets when talking to white middle-class people. They tend to avoid the place and talk about its dangers with racist overtones - thugs, gangs, loitering, et cetera.
The southern end of things, near Coleman Young Airport, does not have as bad a reputation... but the further out one goes, the worse the rep. The city limits of Harper Woods, the nearest suburb on the eastern edge of this mess, are plainly obvious: in that direction, derelicts give way to homes, and cracked and crumbling pavement to neatly maintained streets.
There are no streetlights at night, of course, and during the day most streets feel like ghost towns.