Hi all,
so now I know whom to blame for these dang-blamed circle drive things!
lol. just kidding. we have a city near here that is up and coming and they have many such “roundabouts?”.
first time I came upon one …. I thought it was made by the same drunken fool who did the old roads around where i live …. that all of a sudden out of no where make an “S” curve for no reason I can to this day …. (now some 30 years later) explain. Perhaps some of you had the same kind of old roads near you? my best explanation is that they said “kinda boring driving straight thru – lets put in an “S” curve here!” 
but the roundabouts work and obviously were not made by the same drunken fool who did the S curves. Just took me a bit to get accustomed to them.