There's talk amongst the city bureaucrats (who mostly do NOT live here) about converting the intersection of Roberts and Chamblee Dunwoody into a round-a-bout. Ostensibly this is to alleviate traffic backups but since much of the cause of these backups are downstream of this intersection that is bullshit. So who knows?
There is another problem, very important to city bureaucrats, with the simple, one lane round-a-bout. It doesn't work for trucks. Yes, given the no-truck zone status of C-D and Roberts (both school zones) this should be a non-issue but since the city all but encourages open violations the actual fact is these (illegal) trucks must be provided free access. And the city has a plan. They're going to make it a double lane round-a-bout. Not because there are so many residents needing to do a 270, but because the extra width makes it that much easier for (illegal) truck traffic to easily clear the intersection.
Seriously, is there any bureaucrat at city hall that gives a shit about the folks who actually live here?